diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml index fed1e36..bda9c47 100644 --- a/.github/workflows/deploy.yml +++ b/.github/workflows/deploy.yml @@ -72,8 +72,11 @@ jobs: # Must run AFTER purgecss: the visualizations ship their own CSS, which # purgecss would strip if it were present in _site during the purge. + # Invoked via `bash` rather than executed directly: this repo is authored on + # Windows with core.filemode=false, so a fresh script commits as 100644 and + # the runner would fail it with exit 126. - name: Copy interactive visualizations 🛩️ - run: ./bin/copy-viz.sh _site + run: bash ./bin/copy-viz.sh _site - name: Upload artifact uses: actions/upload-pages-artifact@v3 diff --git a/_config.yml b/_config.yml index b85aee6..8aa6376 100644 --- a/_config.yml +++ b/_config.yml @@ -255,6 +255,9 @@ exclude: keep_files: - CNAME - .nojekyll + # Copied into _site by bin/copy-viz.sh rather than generated. Listing it here + # stops `jekyll serve --watch` from deleting it on every rebuild. + - interactive-visualization # Use al_folio_core as the theme runtime; local files can still override theme files. theme: al_folio_core diff --git a/_data/people.yml b/_data/people.yml index 1492ffa..f716da5 100644 --- a/_data/people.yml +++ b/_data/people.yml @@ -1,61 +1,135 @@ -# Lab roster. Adding a member = appending an entry under the right group. -# Groups render in the order listed in _pages/people.md. +# Lab roster, kept in the order and wording used on the original site. +# To add someone: append an entry under `current` (or `alumni`) and drop a photo +# at assets/img/people/.. Nothing else needs editing. # -# Fields: name (required), topic, grad (expected graduation), note (awards, -# fellowships), url (personal page), email. +# Fields: name, degree, grad (verbatim parenthetical), area, distinctions[], +# photo (path under assets/img/), links{} pi: - - name: Darshan Sarojini - role: Assistant Professor, Aerospace and Ocean Engineering - email: sdarshan@vt.edu - url: https://www.aoe.vt.edu/people/faculty/darshan-sarojini.html + name: Darshan Sarojini + photo: people/darshan-sarojini.jpg + email: sdarshan@vt.edu + bio: + - Darshan Sarojini is an Assistant Professor at Virginia Tech, where he heads the Intelligent Design Optimization Lab (IDOpt Lab) in the Aerospace and Ocean Engineering department. + - He serves on the AIAA Modeling and Simulation Technical Committee, Aircraft Design Technical Committee, Transformational Flight Intergration and Outreach Committee and Multimodal Transportation Working Group, and on a number of committees at the ACM/IEEE SuperComputing Conference. + - He has a bachelor's degree in mechanical engineering, a master's degree in computational science and engineering, and a Ph.D. in aerospace engineering. His graduate school research was conducted in the Aerospace Systems Design Lab at Georgia Tech and postdoctoral research at the Large Scale Design Optimization lab at UC San Diego. + links: + Google Scholar: https://scholar.google.com/citations?user=BmotoisAAAAJ&hl=en + LinkedIn: https://www.linkedin.com/in/darshan-sarojini-31b89999/ + ResearchGate: https://www.researchgate.net/profile/Darshan-Sarojini + ORCID: https://orcid.org/0000-0003-4910-3505 + GitHub: https://github.com/darshansarojini -phd: +current: - name: Grant Lee - topic: Vehicle-Operations Co-Design for Regional Air Mobility + degree: Ph.D. AE + area: Vehicle-Operations Co-Design for Regional Air Mobility + photo: people/grant-lee.png + links: + LinkedIn: https://www.linkedin.com/in/grant-l-9b3271332/ + - name: Khoa D. Nguyen - topic: Autonomous Battery Units for Urban Air Mobility + degree: Ph.D. AE + area: Autonomous Battery Units (ABUs) for Urban Air Mobility + photo: people/khoa-nguyen.jpg + links: + LinkedIn: https://www.linkedin.com/in/aerokhoa/ + Google Scholar: https://scholar.google.com/citations?user=ICGcWY0AAAAJ&hl=en + ResearchGate: https://www.researchgate.net/profile/Khoa-Nguyen-384 + ORCID: https://orcid.org/0009-0004-3502-1722 -bsms: - name: Joseph Gould - topic: Certification-Driven Aircraft Design - grad: Dec 2026 + degree: BS/MS Accelerated Program AE + grad: "(Expected graduation: Dec 2026)" + area: Certification-Driven Aircraft Design + photo: people/joseph-gould.png + links: + LinkedIn: https://www.linkedin.com/in/gouldjoseph/ + - name: Nathan M. Shune - topic: Multidisciplinary Aircraft Design and Trajectory Optimization - grad: Dec 2026 + degree: BS/MS Accelerated Program AE + grad: "(Expected graduation: Dec 2026)" + area: Multi-disciplinary Aircraft Design and Trajectory Optimization + photo: people/nathan-shune.png + links: + LinkedIn: https://www.linkedin.com/in/nathan-shune-518a45220/ + GitHub: https://github.com/nshune + ORCID: https://orcid.org/0009-0006-6147-8149 + + - name: Emma Paulter + degree: MS AE + grad: "(Expected graduation: Dec 2026)" + area: Optimization of hypersonic waveriders in a boost glide trajectory. + links: + LinkedIn: http://www.linkedin.com/in/emma-pautler-engineer + - name: Joel George - topic: Structural Optimization - grad: May 2027 + degree: BS/MS Accelerated Program AE + grad: "(Expected graduation: May 2027)" + area: Structural Optimization of Primary Aerospace Structures Subject to Manufacturability and Producibility Considerations + links: + LinkedIn: https://www.linkedin.com/in/joel-m-george/ + - name: Krish D. Bhatt - topic: Agent-Based Modeling for Multi-modal Transportation - grad: Dec 2027 - - name: Jeremy John - topic: Ship Design Optimization - grad: May 2027 - note: DoW SMART Scholar; 2025 Fincantieri Scholar - - name: Quinn McIver - topic: Off-Nominal Reliability in Aircraft Design - grad: May 2027 + degree: BS/MS Accelerated Program AE + grad: "(Expected graduation: Dec 2027)" + area: Agent Based modeling for Simulating Multi-modal transportation and induction of eVTOLS. + photo: people/krish-bhatt.jpg + links: + LinkedIn: https://www.linkedin.com/in/krish-bhatt/ -ms: - - name: Emma Paulter - topic: Hypersonic Waveriders Optimization - grad: Dec 2026 - name: Casey Chamberlain - topic: Conceptual Aircraft Design Tools - grad: Dec 2027 + degree: "Graduated AE BS: May 2026" + grad: "Expected AE MS Graduation: May 2027" + area: Tools for conceptual aircraft design in capstone design course + photo: people/casey-chamberlain.jpg + links: + LinkedIn: https://www.linkedin.com/in/casey-chamberlain-503992239/ + + - name: Jeremy John + degree: BS/MS Accelerated Program AE + grad: "(Expected graduation: May 2027)" + area: Ship Design Optimization and Dynamics + distinctions: + - DoW SMART Scholarship Recipient + - 2025 Fincantieri Scholar + photo: people/jeremy-john.png + links: + LinkedIn: https://www.linkedin.com/in/jer-j/ + - name: Dylan Hogge - topic: Hybrid-Electric Aircraft Design - grad: Dec 2027 + degree: MS AE + grad: "(Expected graduation: Dec 2027)" + area: Hybrid-electric aircraft design + photo: people/dylan-hogge.png + links: + LinkedIn: https://www.linkedin.com/in/dylan-hogge-aa33bb24a/ + + - name: Quinn McIver + degree: BS/MS Accelerated Program AE + grad: "(Expected graduation: May 2027)" + area: Off-Nominal Reliability Considerations for Conceptual Aircraft Design Optimization + photo: people/quinn-mciver.jpg + links: + LinkedIn: https://www.linkedin.com/in/quinn-mciver -undergrad: - name: Sanjana Anem - topic: Aircraft Design Visualization in VR - grad: May 2028 + degree: Junior AE + grad: "(Expected graduation: May 2028)" + area: Aircraft Design Visualization in VR + photo: people/sanjana-anem.jpg + links: + LinkedIn: https://www.linkedin.com/in/sanjana-anem-4497a9327/ alumni: - - name: Naman Kumar Shetty - topic: Flight Dynamics Framework - note: MS, May 2026 - name: Ethan J. Phillips - topic: Flight Simulation and VR + degree: ME + area: Aircraft Flight Simulation and VR visualization + links: + LinkedIn: https://www.linkedin.com/in/ethan-phillips-vt/ + + - name: Naman Kumar Shetty + degree: "MS Non-Thesis AE (Graduated: May 2026)" + area: Modular Flight Dynamics & Simulation Frameworks. + links: + LinkedIn: https://www.linkedin.com/in/naman-kumar-shetty/ diff --git a/_data/resources.yml b/_data/resources.yml new file mode 100644 index 0000000..5bd28d2 --- /dev/null +++ b/_data/resources.yml @@ -0,0 +1,329 @@ +# Student resources, rendered by _pages/resources.md as a filterable index. +# +# Each entry's `body` is the original description and links, verbatim. The facets +# below it drive the filter chips. +# +# type: fellowship | scholarship | grant | competition | summer program | travel +# level: undergrad | masters | phd | postdoc (list; an entry may span several) +# scope: national | international | local +# +# To add an opportunity, append an entry -- no HTML or layout changes needed. + +- name: "Dwight DDETFP" + type: "fellowship" + level: [undergrad, masters, phd] + scope: national + body: | + The Dwight David Eisenhower Transportation Fellowship Program (DDETFP) awards fellowships to students pursuing degrees in transportation-related disciplines. This program advances the transportation workforce by helping to attract the nation's brightest minds to the field of transportation, encouraging future transportation professionals to seek advanced degrees, and helping to retain top talent in the U.S. transportation industry. + + [Program Information](https://highways.dot.gov/careers/dwight-david-eisenhower-transportation-fellowship-program) + +- name: "NSF GRFP" + type: "fellowship" + level: [masters, phd] + scope: national + body: | + The purpose of the NSF Graduate Research Fellowship Program (GRFP) is to help ensure the quality, vitality, and diversity of the scientific and engineering workforce of the United States. NSF actively encourages the submission of applications from the full spectrum of diverse talent that society has to offer, including underrepresented and underserved communities. The five-year Fellowship provides three years of financial support, including an annual stipend of $37,000. + + [Program Information](https://www.nsfgrfp.org/) + +- name: "NSF Postdoctoral Fellowship" + type: "fellowship" + level: [postdoc] + scope: national + body: | + NSF's Engineering Fellows program supports independent postdoctoral research in engineering. In addition to hands-on academic research with a faculty advisor, each fellowship cohort participates in professional development and mentoring activities designed to prepare them for future research careers. + + [Program Information](https://new.nsf.gov/funding/postdocs#engineering-postdoctoral-fellowship-6bc) + +- name: "John V. Wehausen Graduate Scholarship" + type: "scholarship" + level: [masters] + scope: national + body: | + The John V. Wehausen Scholarship is part of the SNAME Graduate Scholarships Program, open to applicants worldwide who are members, in good standing, of SNAME that preferably express an interest in the study of ship hydrodynamics and wave theory, though that is not a requirement. Awards are made for one year of study leading to a Master's Degree. Applicants must not receive their Master's Degree prior to 1 September of the academic year for which the scholarship applies. + + [Program Information- Masters](https://sname.org/scholarship/john-v-wehausen-graduate-scholarship) + +- name: "Samya Rose Stumo National Air Grant Fellowship" + type: "fellowship" + level: [masters, phd] + scope: national + body: | + The program offers an opportunity for graduate students in aerospace fields to gain experience in how aviation legislation and policy are developed. + + [Program Information- PhD](https://www.faa.gov/nagf) + +- name: "DoE Office of Science Graduate Student Research (SCGSR) Program" + type: "fellowship" + level: [phd] + scope: national + body: | + The SCGSR program provides supplemental funds for U.S. graduate awardees (U.S. citizens or lawful permanent residents) to conduct part of their PhD thesis research at a host DOE laboratory/facility in collaboration with a DOE National Laboratory scientist within a defined award period. + + [Program Information](https://science.osti.gov/wdts/scgsr) + +- name: "DoD SMART" + type: "scholarship" + level: [undergrad, masters, phd] + scope: national + body: | + The SMART Scholarship-for-Service Program is a combined educational and workforce development opportunity for STEM students. SMART offers scholarships for undergraduate, master's, and doctoral students pursuing a STEM degree. SMART offers two scholarship opportunities, the SMART Scholarship and the Ronald V. Dellums Memorial SMART Scholarship. All scholarship recipients receive full tuition, annual stipends, internships, and guaranteed civilian employment with the Department of Defense after graduation. + + [Program Information](https://www.smartscholarship.org/smart/en) + +- name: "DoD NDSEG" + type: "fellowship" + level: [phd] + scope: national + body: | + The DoD National Defense Science and Engineering Graduate (NDSEG) Fellowship Program is a competitive fellowship that is awarded to U.S. citizens, U.S. nationals, and U.S. dual citizens who intend to pursue a Doctoral degree aligned to the DoD services Broad Agency Announcements (BAAs) in research and development at a U.S. institution of their choice. + + [Program Information](https://ndseg.sysplus.com/NDSEG/about/) + +- name: "ACRP Graduate Research Award" + type: "fellowship" + level: [masters, phd] + scope: national + body: | + The ACRP (Airport Cooperative Research Program) Graduate Research Award (GRA) is intended to stimulate thought, discussion, and research by those who may become the future airport managers, operators, designers, and policymakers in aviation. The focus of this graduate student research program is on applied research on airport and related aviation system issues to help the public sector continue to improve the quality, reliability, safety, and security of the U.S. civil aviation system well into the foreseeable future. + + [Program Information](https://www.trb.org/ACRP/GraduateResearchAwards.aspx) + +- name: "VFS Robert L. Lichten Award" + type: "competition" + level: [undergrad, masters, phd] + scope: national + body: | + Established to provide an incentive to VFS members, who have not previously presented the results of their work at a technical forum, to begin presenting their work at local and regional VFS meetings. + + [Program Information](https://vtol.org/awards-and-contests/vertical-flight-society-award-winners?awardID=15) + +- name: "VFS VFF Scholarship Program" + type: "scholarship" + level: [undergrad, masters, phd] + scope: national + body: | + Each year, Vertical Flight Foundation (VFF) scholarships are awarded to college students demonstrating an interest in pursuing engineering related careers in vertical flight technology. + + [Program Information](https://vtol.org/vff) + +- name: "TUM PREP, Germany" + type: "summer program" + level: [undergrad] + scope: international + body: | + In the framework of the Practical Research Experience Program (TUM PREP), TUM invites each summer excellent students from leading North American universities and the Imperial College London to spend an approx. 8-week long research stay at TUM. Participating students gain valuable insights into the research work at Germany's top-ranked technical university and enhance their technical and methodological qualifications. + + [Program Information](https://www.international.tum.de/en/global/prep/) + +- name: "DAAD RISE" + type: "summer program" + level: [undergrad, masters, phd] + scope: international + body: | + RISE Professional offers summer research internships in Germany to Master's and Ph.D. students from USA, Canada, Great Britain or Ireland at companies and non-university research institutions with strong relations to industry. + + [Program Information - Graduate Students](https://www.daad.de/rise/en/rise-professional/) + + RISE Germany offers undergraduate students from North American, British and Irish universities the opportunity to complete a summer research internship at top German universities and research institutions. + + [Program Information - Undergraduate Students](https://www.daad.de/rise/en/rise-germany/) + +- name: "Start in France Program" + type: "summer program" + level: [undergrad, masters, phd] + scope: international + body: | + The Start in France program is organized by the Office for Science and Technology (SST) of the Embassy of France in the United States, with the support of the Ministry for Europe and Foreign Affairs. + + This program aims to introduce selected laureates to the French innovation ecosystem and allow them to benefit from France's expertise and dynamism in this field. Through Start in France, laureates will be able to assess France's attractiveness in terms of innovation and research, as well as identify relevant support programs and mechanisms for their potential development. + + [Program Information](https://la-synapse.com/en/our-programs/start-in-france-program/) + +- name: "MIT Summer Research Program (MSRP)" + type: "summer program" + level: [undergrad] + scope: national + body: | + The MIT Summer Research Program (MSRP) is a competitive summer initiative designed to promote the value of graduate education, broaden participation in the research enterprise, and prepare and recruit exceptional undergraduate students for graduate study at MIT and beyond. + + MSRP seeks to identify talented undergraduates who might benefit from spending a summer on MIT's campus, conducting research under the guidance of MIT faculty members, postdoctoral fellows, and advanced graduate students. + + [Program Information](https://oge.mit.edu/msrp/) + +- name: "University of Utah Summer Program for Undergraduate Research (SPUR)" + type: "summer program" + level: [undergrad] + scope: national + body: | + SPUR is a nationally competitive opportunity that provides undergraduate students with an intensive 10-week summer research experience under the mentorship of a University of Utah faculty member. The program provides opportunities to gain research experience in a variety of disciplines. + + [Program Information](https://our.utah.edu/research-scholarship-opportunities/spur/) + +- name: "Northwestern Summer Research Opportunity Program (SROP)" + type: "summer program" + level: [undergrad] + scope: national + body: | + The Summer Research Opportunity Program (SROP) is an eight-week competitive research experience hosted by Northwestern University for sophomores and juniors from colleges and universities across the United States. All research fields at Northwestern are open to SROP participants including the social sciences, humanities, physical sciences, chemical and biological sciences, technology, math, and engineering fields. + + [Program Information](https://www.tgs.northwestern.edu/success/recruitment/summer-research-opportunity-program/) + +- name: "NASA USRC" + type: "competition" + level: [undergrad, masters, phd] + scope: national + body: | + University Student Research Challenge (USRC) seeks to challenge students to propose new ideas/concepts that are relevant to NASA Aeronautics. USRC will provide students, from accredited U.S. colleges or universities, with grants for their projects and with the challenge of raising cost share funds through a crowdfunding campaign. [[Program Information](https://nspires.nasaprs.com/external/solicitations/summary!init.do?solId=%7BF97021D4-09B1-92EF-44F9-692818541E49%7D&path=open)] + +- name: "NASA Blue Skies Competition" + type: "competition" + level: [undergrad, masters] + scope: national + body: | + Opportunities exist to improve currently deployed systems and/or implement new technologies by modernizing aviation capabilities in agriculture to increase impact, safety, and ease of access to both these enabling systems and the products/services they ensure. + + [Program Information](https://blueskies.nianet.org/) + +- name: "ACRP Design Competition" + type: "competition" + level: [undergrad, masters, phd] + scope: national + body: | + This Competition challenges individuals and teams of undergraduate and/or graduate students working with faculty advisors at U.S. colleges and universities to consider innovative approaches related to airport issues. + + [Program Information](https://www.trb.org/ACRP/ACRPDesignCompetition.aspx) + +- name: "National Conference on Undergraduate Research (NCUR)" + type: "competition" + level: [undergrad] + scope: national + body: | + The National Conference on Undergraduate Research (NCUR) is dedicated to promoting undergraduate research, scholarship and creative activity in all fields of study by sponsoring an annual conference for students. Unlike meetings of academic professional organizations, this gathering of student scholars welcomes presenters from all institutions of higher learning and from all disciplines. Overall, this conference offers a unique environment for the celebration and promotion of undergraduate student achievement; provides models of exemplary research, scholarship, and creative activity; and offers student career readiness development. + + [Program Information](https://ncur.secure-platform.com/) + +- name: "VT ICTAS Undergraduate Research Fellowship" + type: "fellowship" + level: [undergrad] + scope: local + body: | + The ICTAS Undergraduate Research Fellowship Program supports early career undergraduates involved in mentored research at Virginia Tech. The goal of the program is to enable students to extend their current research projects and experience a step further with independent funding, so that they can devote additional time to their project, under the supervision of their chosen mentor. + + [Program Information](https://www.research.undergraduate.vt.edu/research-and-engagement/student-research-and-engagement/research-opportunities/virginia-tech-research-opportunities/ictas-undergraduate-research-fellowship.html) + +- name: "VSGC STEM Research Scholarship" + type: "scholarship" + level: [undergrad, masters, phd] + scope: local + body: | + Applicants must be enrolled full-time in a program of study STEM and have a specific faculty-mentored research project that has NASA or aerospace relevance. + + [Program Information- Undergraduate](https://vsgc.odu.edu/undergraduatescholarships/) + + [Program Information- Graduate](https://vsgc.odu.edu/graduatefellowships/) + +- name: "Charles C. Walts Scholarship Endowment" + type: "scholarship" + level: [undergrad] + scope: local + body: | + Charles C. Walts, a 1941 alumnus, established scholarships for students pursuing a degree in the College of Engineering. The scholarships shall be limited to those students who are U.S. citizens enrolled in the R.O.T.C. program. There is no work requirement attached to this fellowship. The fellowship is typically awarded starting in the fall semester. + +- name: "Robert & Carol Tolson Fellowship" + type: "fellowship" + level: [masters, phd] + scope: local + body: | + Established by Robert H. Tolson ('58), this award is for graduate students or students admitted for graduate study who are members of an underrepresented population of students in the College of Engineering's Department of Aerospace and Ocean Engineering. Preference will be given to individuals demonstrating financial need and secondarily to students demonstrating an interest in space research. + + [AOE Fellowships Page](https://www.aoe.vt.edu/graduate/fellowships-and-assistantships.html) + +- name: "Pratt Fellowship" + type: "fellowship" + level: [masters, phd] + scope: local + body: | + This scholarship was created through a gift by John Lee Pratt in 1967, and represents the funding source for your Dean's Scholar award. Pratt Graduate Funding typically supports graduate students participating in overseas education or research experiences, such as attending an international conference. + +- name: "Innovate Cyber Challenge" + type: "competition" + level: [undergrad] + scope: local + body: | + This program aims to develop work-related skills while students resolve important issues faced by local business and industry. Students work within a team to identify a challenge or issue related to cybersecurity. Using the design thinking approach to problem-solving, students were empowered to express their ideas, think creatively, and research within a high-impact team environment to identify solutions. + + [Program Page](https://covacci.org/innovate-cyber-challenge/) + +- name: "Rolls Royce Undergraduate Internship" + type: "summer program" + level: [undergrad] + scope: local + body: | + The Rolls-Royce Summer Internship provides students with a unique entry into real-world engineering objectives and the chance to make an impact from the start. Engineering students will gain valuable skills, learning directly from some of the most respected and highly qualified engineers in the industry. + + [Program Information](https://eng.vt.edu/academics/international-programs/international-interships/rolls-royce-international-internship.html) + +- name: "VT Presidential Postdoctoral Fellowship" + type: "fellowship" + level: [postdoc] + scope: local + body: | + To prepare postdocs for the next step in their careers, fellows will receive: + + - Up to two years of support with nationally competitive salaries and benefits + - Up to $10,000 for training and professional development-related expenses (to be used over the fellowship period) + - Mentoring and professional development + + [Program Information](https://www.research.vt.edu/about/postdoctoral-associates/virginia-tech-presidential-postdoctoral-fellowships.html) + +- name: "VT Research and Innovation Postdoctoral Scholar program" + type: "fellowship" + level: [postdoc] + scope: local + body: | + Current postdocs selected into this program will join the incoming Presidential Postdoctoral Fellows in a year-long, immersive experience designed to assist postdocs in maximizing time as a postdoc, build valuable skills and networks, have a positive impact on the university and local community, and ultimately launch successful careers. + + [Program Information](https://www.research.vt.edu/about/postdoctoral-associates/research-innovation-postdoctoral-scholar-program.html) + +- name: "Roger and Debbie West Student Grant" + type: "grant" + level: [undergrad, masters, phd] + scope: local + body: | + The Institute for Creativity, Arts, and Technology (ICAT) invites applicants for projects that leverage the combined strengths of science, engineering, art, and design to tackle real-world challenges. Teams must be comprised of students from at least two different schools/department, and one team member must represent arts and/or design. ICAT will award five, $1,000 student grants. + + [Program Information](https://icat.vt.edu/funding/roger-and-debbie-west-student-grant-call-for-proposals.html) + +- name: "First Year Fralin Undergraduate Research Fellowship" + type: "fellowship" + level: [undergrad] + scope: local + body: | + The First-Year Fralin Undergraduate Research Fellowship (or First-Year FURF) Program will provide first-year students, who are new to research, with authentic research experiences in their chosen discipline, under the direct mentorship of a faculty member. The program features projects from every college, and is open to all students who enrolled at Virginia Tech in the Fall. + + [Program Information](https://www.research.undergraduate.vt.edu/research-and-engagement/student-research-and-engagement/research-opportunities/virginia-tech-research-opportunities/first-year-furf.html) + +- name: "Multicultural Academic Opportunities Program (MAOP) Summer Research Internship" + type: "summer program" + level: [undergrad] + scope: local + body: | + The primary goal of this 10-week program is to help students explore career goals and grow professionally. Participants will benefit from: + + - Weekly research & professional development seminars + - Occasional social events + - A final research symposium with poster presentations + - On-campus housing, meal plan, and $3,000 stipend + + [Program Information](https://www.maop.vt.edu/program-services-and-initiatives/undergraduate-summer-research-internship/prospective-intern.html) + +- name: "VT Conference Travel Funds" + type: "travel" + level: [undergrad, masters, phd] + scope: local + body: | + - Graduate student international travel: [Program Information](https://eng.vt.edu/international-programs/student-resources-for-international-programs/conference_travel_fellowship.html) + - Undergrad travel for both domestic and international: [Program Information](https://www.research.undergraduate.vt.edu/funding-and-support/student-funding-and-support/travel-grant.html) + diff --git a/_includes/news.liquid b/_includes/news.liquid new file mode 100644 index 0000000..b4d98e0 --- /dev/null +++ b/_includes/news.liquid @@ -0,0 +1,75 @@ +{% comment %} + Local override of al-folio's news.liquid. Two changes from the theme version: + + 1. Dates render as "%b %Y" (month + year). The source archive only ever gave + month granularity, so a day number would be invented precision. + 2. News items may carry an optional image. Add to any file in _news/: + + image: news/2026/flight-school.jpg # path under assets/img/ + image_alt: Students touring the flight school + image_width: 260 # optional, px; defaults to 220 + + Items without an image render exactly as before. +{% endcomment %} + +
+ {% if site.news != blank %} + {% assign news_size = site.news | size %} +
3 %} + style="max-height: 60vw" + {% endif %} + > + + {% assign news = site.news | reverse %} + {% if include.limit and page.announcements.limit %} + {% assign news_limit = page.announcements.limit %} + {% else %} + {% assign news_limit = news_size %} + {% endif %} + {% for item in news limit: news_limit %} + + + + + {% endfor %} +
{{ item.date | date: '%b %Y' }} + {% if item.inline %} + {{ item.content | remove: '

' | remove: '

' | emojify }} + {% else %} + {{ item.title }} + {% endif %} + {% if item.image %} +
+ {{ item.image_alt | default: '' }} + {% if item.image_alt %}
{{ item.image_alt }}
{% endif %} +
+ {% endif %} +
+
+ {% else %} +

No news so far...

+ {% endif %} +
+ + diff --git a/_pages/about.md b/_pages/about.md index 76d11f6..9d7c761 100644 --- a/_pages/about.md +++ b/_pages/about.md @@ -2,20 +2,14 @@ layout: about title: about permalink: / -subtitle: Intelligent Design Optimization Lab · Aerospace and Ocean Engineering, Virginia Tech - -profile: - align: right - # TODO: drop a photo at assets/img/prof_pic.jpg and uncomment the line below. - # The al-folio demo image that shipped here has been removed. - # image: prof_pic.jpg - image_circular: false - more_info: > -

Darshan Sarojini

-

Assistant Professor

-

sdarshan@vt.edu

- -selected_papers: true # includes a list of papers marked as "selected={true}" +subtitle: Aerospace and Ocean Engineering, Virginia Tech + +# No profile block at all: the headshot and contact details live on /people/. +# Omitting `profile` entirely removes the whole sidebar card, not just the image. + +# The featured publication is presented inline with the Featured Work figure +# below, so the theme's separate selected-papers list is switched off. +selected_papers: false social: true # includes social icons at the bottom of the page announcements: @@ -29,16 +23,26 @@ latest_posts: limit: 3 --- -We work on advancing the science and practice of engineering design — improving how complex engineering systems are conceived, analyzed, and optimized. +At the IDOpt lab, we work on advancing the science and practice of engineering design. We aim to improve how complex engineering systems are conceived, analyzed, and optimized. + +Aircraft are prime examples of complex engineering systems. Their design is shaped by their missions and the environments in which they operate. Aircraft design requires consideration of multiple disciplines—such as aerodynamics, propulsion, structures, and controls—and the coupled analysis of these disciplines to evaluate overall performance. As safety-critical systems, aircraft must meet rigorous regulatory certification standards and demonstrate high reliability across all components. + +At the IDOpt lab, we develop methods, algorithms, and software to address such challenges. + +### Research Expertise + +- Certification-Driven Design +- Integration of Multidisciplinary Design, Analysis, and Optimization (MDAO) and Model-Based Systems Engineering (MBSE) +- Multimodal Transportation Systems + +### Featured Work -Aircraft are the prime example: shaped by the missions they fly and the environments they operate in, spanning aerodynamics, propulsion, structures, and controls at once, and held to rigorous certification standards. Analyzing them well means treating them as multidisciplinary systems rather than a collection of separately optimized parts. We develop the methods, algorithms, and software to address those challenges. +Large-scale multidisciplinary design optimization (MDO) of electric vertical takeoff and landing (eVToL) concepts. -### Research expertise +{% include figure.liquid path="assets/img/research/evtol-system-mdo/03-featured-baseline-vs-optimized.png" alt="A lift-plus-cruise eVTOL aircraft in its baseline and optimized configurations." class="img-fluid rounded z-depth-1" %} -- **Certification-Driven Design** — treating certification criteria as constraints that shape the feasible design space, rather than checks applied after the fact. -- **Integration of MDAO and MBSE** — connecting multidisciplinary design, analysis, and optimization with model-based systems engineering. -- **Multimodal Transportation Systems** — assessing how new air vehicles interact with the wider transportation network. +Sarojini, D., Ruh, M. L., Joshy, A. J., Yan, J., Ivanov, A. K., Scotzniovsky, L., ... & Hwang, J. T. (2023). [Large-Scale Multidisciplinary Design Optimization of an eVTOL Aircraft using Comprehensive Analysis](https://doi.org/10.2514/6.2023-0146). In AIAA SCITECH 2023 Forum (p. 0146). -### Joining the lab +### Join my Research Group! -I am recruiting students and researchers, including research assistantships, teaching positions, and postdoctoral opportunities. See [openings](/join/) for how to get in touch. +I'm always on the lookout for talented students and researchers to join my group. Whether you're interested in research assistantships, teaching assistantships, undergraduate research, or postdoctoral opportunities, there's a place for you here. Please fill out [this form](https://forms.office.com/r/vZSr7TRKZ5) to express your interest and share more about your background. diff --git a/_pages/join.md b/_pages/join.md index 73bca40..f69ab7d 100644 --- a/_pages/join.md +++ b/_pages/join.md @@ -4,21 +4,11 @@ title: join permalink: /join/ description: Openings in the Intelligent Design Optimization Lab. nav: true -nav_order: 6 +nav_order: 9 --- -I am actively recruiting students and researchers. Current opportunities include **graduate research assistantships**, **teaching positions**, and **postdoctoral appointments**. +I'm always on the lookout for talented students and researchers to join my group. Whether you're interested in research assistantships, teaching assistantships, undergraduate research, or postdoctoral opportunities, there's a place for you here. Please fill out [this form](https://forms.office.com/r/vZSr7TRKZ5) to express your interest and share more about your background. -## Prospective graduate students - -If your interests overlap with [our research](/research/) — multidisciplinary design optimization, certification-driven design, model-based systems engineering, or multimodal transportation — please get in touch. Include your CV and a short note on what you would like to work on. - - +See [our research](/research/) for the methods we develop, [projects](/projects/) for what they are applied to, and [people](/people/) for the kinds of projects students take on. **Email:** sdarshan@vt.edu - -## Current Virginia Tech students - -Undergraduate and Master's students at Virginia Tech interested in research are welcome to email directly. Several lab members joined through the accelerated BS/MS program — see [people](/people/) for the kinds of projects students take on. diff --git a/_pages/people.md b/_pages/people.md index c48bea2..29c7e0c 100644 --- a/_pages/people.md +++ b/_pages/people.md @@ -4,46 +4,93 @@ title: people permalink: /people/ description: The Intelligent Design Optimization Lab. nav: true -nav_order: 4 +nav_order: 5 --- - - -{% assign groups = "phd,bsms,ms,undergrad,alumni" | split: "," %} -{% assign labels = "PhD Students,Accelerated BS/MS Students,Master's Students,Undergraduate Researchers,Alumni" | split: "," %} + {% assign pi = site.data.people.pi %} -{% if pi %} ## Principal Investigator -{% for p in pi %} - -**{% if p.url %}[{{ p.name }}]({{ p.url }}){% else %}{{ p.name }}{% endif %}**{% if p.role %} — {{ p.role }}{% endif %}{% if p.email %} -
{{ p.email }}{% endif %} -{% endfor %} -{% endif %} +
+ {% if pi.photo %} + {{ pi.name }} + {% endif %} +
+

{{ pi.name }}

+ {% for para in pi.bio %}

{{ para }}

{% endfor %} +

+ {{ pi.email }} + {% for l in pi.links %} · {{ l[0] }}{% endfor %} +

+
+
-{% for g in groups %} -{% assign members = site.data.people[g] %} +{% assign groups = "current,alumni" | split: "," %} +{% for group in groups %} +{% assign members = site.data.people[group] %} {% if members and members.size > 0 %} -## {{ labels[forloop.index0] }} +## {% if group == "current" %}Current Members{% else %}Alumni{% endif %} - + {% endif %} {% endfor %} ---- - -Interested in joining? See the [openings](/join/). + diff --git a/_pages/projects.md b/_pages/projects.md index 0184a70..c481e9e 100644 --- a/_pages/projects.md +++ b/_pages/projects.md @@ -1,10 +1,10 @@ --- layout: page -title: research -permalink: /research/ -description: Projects underway in the Intelligent Design Optimization Lab. +title: projects +permalink: /projects/ +description: Ongoing and completed projects. nav: true -nav_order: 2 +nav_order: 3 display_categories: [ongoing, completed] horizontal: false --- diff --git a/_pages/publications.md b/_pages/publications.md index 39ed218..75ebd41 100644 --- a/_pages/publications.md +++ b/_pages/publications.md @@ -4,7 +4,7 @@ permalink: /publications/ title: publications description: publications by categories in reversed chronological order. generated by jekyll-scholar. nav: true -nav_order: 3 +nav_order: 4 --- diff --git a/_pages/research.md b/_pages/research.md new file mode 100644 index 0000000..989bc15 --- /dev/null +++ b/_pages/research.md @@ -0,0 +1,73 @@ +--- +layout: page +title: research +permalink: /research/ +description: Methods developed and applied in the Intelligent Design Optimization Lab. +nav: true +nav_order: 2 +--- + +Aircraft are prime examples of complex engineering systems. Their design is shaped by the missions they perform and the environments in which they operate. Aircraft design requires consideration of multiple disciplines—such as aerodynamics, propulsion, structures, and controls—and the coupled analysis of these disciplines to evaluate overall performance. As safety-critical systems, aircraft must meet rigorous regulatory certification standards and demonstrate high reliability across all components. + +At the IDOpt Lab, we focus on developing and applying advanced methods to tackle these challenges: + +- Multidisciplinary Design Analysis and Optimization (MDAO) +- Multifidelity Surrogate Models +- Reliability-Based Optimization +- Model-Based Systems Engineering (MBSE) + +Figures, publications, and slides for each method live with the [projects](/projects/) that apply them. + +## Multidisciplinary Design Optimization (MDO) + +At the IDOpt Lab, our MDAO framework is geometry-centric, meaning the geometry of the system serves as the foundation for all analyses and optimizations. This approach enables us to represent the design in a unified and modifiable form. During optimization, the geometry evolves to meet performance, reliability, and safety objectives. + +Our framework leverages computational graphs to represent all mathematical models, providing two critical advantages: + +- **Automated Derivative Computation** — The computational graph structure enables automatic differentiation, eliminating the need for manually derived gradients. This capability is essential for optimizing large-scale systems with hundreds of design variables and constraints. +- **High-Performance Computing Acceleration** — The same computational graph structure facilitates acceleration on high-performance computing platforms, including GPU clusters. This ensures that even computationally expensive models can be executed efficiently, reducing turnaround times for optimization. + +Our framework builds on tools developed by our collaborators at the [LSDO Lab](https://lsdo.eng.ucsd.edu/) at UC San Diego. + +### Aircraft Sizing Framework + +At its core, the framework has a 6 Degrees of Freedom (6-DoF) Flight Dynamics Module, enabling detailed and accurate analysis of aircraft performance throughout the mission envelope. + +The framework is designed with flexibility and modularity in mind: + +- **Modular Functional-Form Approach** — The framework supports the use of any aerodynamic, propulsion, or mass properties model, allowing users to customize the system based on their specific design requirements. This flexibility makes it possible to analyze a wide range of aircraft configurations. +- **Versatility for Conventional and Novel Designs** — The Aircraft Sizing Framework is equipped to handle both conventional fixed-wing aircraft and unconventional designs, such as truss-braced wing, blended-wing-body, or multi-rotor configurations. It is equally adept at evaluating traditional fuel-based propulsion systems and novel electrified propulsion architectures, including hybrid-electric and fully electric systems. + +This framework allows for rapid exploration of design trade-offs, enabling engineers to assess the feasibility of various aircraft configurations and optimize them to meet performance, safety, and regulatory requirements. + +Applied in [Electric Air Taxi Concept System-Level MDO](/projects/6_evtol_system_mdo/). + +## Multifidelity Surrogate Models + +Engineering design often involves computationally intensive analyses that require evaluating a system repeatedly under varying conditions. Examples of these "many-query" analyses include optimization, design space exploration, and uncertainty quantification. These tasks become especially demanding when traditional high-fidelity simulations are used. While these models provide accurate results, their computational cost makes them impractical for iterative analyses that require thousands of evaluations. + +Low-fidelity models, on the other hand, are computationally faster but often less accurate, introducing errors that can compromise the reliability of results. Multifidelity surrogate models strike a balance by leveraging the strengths of both approaches. A small number of high-fidelity simulations are strategically combined with a larger number of low-fidelity evaluations. This integration accelerates the overall computation while maintaining the accuracy and reliability of the final results. + +Applied in [Multi-Fidelity Reduced-Order Modeling (ROM)](/projects/15_multifidelity_rom/). + +## Reliability-Based Optimization + +The simplest definition of safety risk in the literature generally involves quantifying it as a combination of two entities - the probability of a failure or an unsafe event, and the severity associated with it. + +Reliability-based optimization aim to ensure that any system under consideration poses no worse than an acceptable level of risk. + +### Hazard Safety Analysis and Bayesian Compliance Assessment + +The approach combines top-down and bottom-up approaches to address limitations in traditional risk assessment methods and bridge gaps in safety evaluations for novel aircraft architectures. The framework defines three levels of analysis: + +- **System-Level:** Refers to the aircraft as a whole, capturing its overall behavior using six-degree-of-freedom (6 DoF) flight dynamics models. These models analyze how the entire system responds to off-nominal conditions and 14-CFR regulatory requirements. +- **Control-Level:** Represents subsystems that effect changes in the aircraft's state, including traditional control surfaces, engines, motors, and other mechanisms for movement control. This generalization encompasses all possible means of influencing the aircraft's dynamics. +- **Component-Level:** Focuses on individual components within the aircraft's powertrain, such as specific motors or energy storage units, and their respective failure behaviors. + +The process begins with a top-down analysis, where system-level performance is assessed to derive failure rate requirements for the control-level. This ensures alignment with regulatory standards and safety goals. Conversely, a bottom-up approach models component-level failures in a probabilistic framework, propagating their effects through the system to evaluate the control-level failure rate. The framework then compares the computed failure rate from the bottom-up analysis to the required failure rate from the top-down analysis. This comparison enables a safety assessment, determining whether the system meets acceptable risk thresholds. + +Applied in [Reliability-Based Design of the X-57 Concept](/projects/9_x57_reliability/). + +## Model-Based Systems Engineering (MBSE) + +Applied in [Integrating MBSE and MDO through an Extended RFLP Framework](/projects/16_mbse_rflp/). diff --git a/_pages/resources.md b/_pages/resources.md index 983bb0a..a0f0a4b 100644 --- a/_pages/resources.md +++ b/_pages/resources.md @@ -2,46 +2,215 @@ layout: page title: student resources permalink: /resources/ -description: Funding opportunities and competitions for students. +description: Fellowships, funding opportunities, competitions, and research award programs. nav: true nav_order: 8 --- - +This page highlights resources available to students including information about fellowships and other funding opportunities, student competitions, and research award programs. -## National fellowships + -- **NSF GRFP** — three years of support, including an annual stipend of $37,000 -- **DoD SMART** — full tuition, annual stipend, internships, and guaranteed civilian employment -- **DoD NDSEG** — competitive fellowship for U.S. citizens pursuing doctoral degrees -- **ACRP Graduate Research Award** — stimulating thought, discussion, and research on airport issues -- **Dwight D. Eisenhower Transportation Fellowship (DDETFP)** -- **NSF Postdoctoral Fellowship** -- **John V. Wehausen Graduate Scholarship** -- **Samya Rose Stumo National Air Grant Fellowship** -- **DoE SCGSR Program** +{% assign all = site.data.resources %} -## Competitions +
+
+ Who + {% assign levels = "undergrad,masters,phd,postdoc" | split: "," %} + {% assign level_names = "Undergraduate,Master's,PhD,Postdoc" | split: "," %} + {% for l in levels %} + + {% endfor %} +
-- **NASA University Student Research Challenge (USRC)** -- **NASA Blue Skies** -- **ACRP Design Competition** +
+ What + {% assign types = "fellowship,scholarship,grant,competition,summer program,travel" | split: "," %} + {% for t in types %} + + {% endfor %} +
-## Summer research programs +
+ Where + {% assign scopes = "national,international,local" | split: "," %} + {% assign scope_names = "National,International,Virginia Tech & Virginia" | split: "," %} + {% for s in scopes %} + + {% endfor %} +
-**International** — TUM PREP (Germany) · DAAD RISE · Start in France +
+ Showing {{ all | size }} of {{ all | size }} + +
+
-**United States** — MIT · University of Utah · Northwestern +
+{% for item in all %} +
+ + {{ item.name }} + + {{ item.type }} + {% for l in item.level %}{{ l }}{% endfor %} + + +
+ {{ item.body | markdownify }} +
+
+{% endfor %} +
-## Virginia Tech + -- **ICTAS Undergraduate Research Fellowship** -- **VSGC STEM Research Scholarship** -- **Tolson and Pratt departmental fellowships** -- **Presidential Postdoctoral Fellowship** -- **First-Year FURF** -- **MAOP Summer Research Internship** + + + diff --git a/_pages/service.md b/_pages/service.md index 67ad8de..cea57cf 100644 --- a/_pages/service.md +++ b/_pages/service.md @@ -7,37 +7,101 @@ nav: true nav_order: 7 --- -## AIAA + -- **Aircraft Design (AD) Technical Committee** — member, 2025–present -- **Aviation in Multimodal Transportation (AiMT) Integration and Outreach Committee** — member, 2024–present; chair of the technical papers subcommittee; Aviation 2024 Forum360 planning committee -- **Transformational Flight (TF) Integration and Outreach Committee** — member, 2022–present -- **Modeling and Simulation Technologies (MST) Technical Committee** — member, 2022–present; technical discipline chair for Aviation 2025; deputy chair for SciTech 2025 +## Leadership -## SuperComputing Conference +### American Institute of Aeronautics and Astronautics (AIAA) -- **SC 2024** — vice-chair, Student Cluster Competition -- **SC 2023** — early career committee; reproducibility challenge committee -- **SC 2022** — early career committee; vice-chair, IndySCC; student programming committee -- **SC 2021** — co-chair of the IndySCC, a new education-focused track of the Student Cluster Competition +- Member of the AIAA Aircraft Design (AD) Technical Committee 2025-Present +- Member of the AIAA Aviation in Multimodal Transportation (AiMT) Integration and Outreach Committee 2024-Present + - Technical papers subcommittee chair + - Planning committee for a Forum360 at Aviation 2024 [[Recording](https://www.youtube.com/watch?v=RMF0pmCEkYU)] +- Member of the AIAA Transformational Flight (TF) Integration and Outreach Committee 2022-Present +- Member of the AIAA Modeling and Simulation Technologies (MST) Technical Committee 2022-Present + - Technical discipline chair for Aviation 2025 Forum + - Deputy technical discipline chair for SciTech 2025 Forum -## Campus Champions +### International Conference for High Performance Computing, Networking, Storage, and Analysis (SuperComputing) -Campus champion for the University of California San Diego, with responsibility for NSF ACCESS allocations. +- **SuperComputing 2024** + - Vice-chair of Student Cluster Competition (Students@SC committee) +- **SuperComputing 2023** + - Early career committee member (Inclusivity committee). + - Reproducibility challenge committee member (Students@SC committee). +- **SuperComputing 2022** + - Early career committee member (Inclusivity committee). + - Vice-chair of IndySCC (Students@SC committee). Informational [paper](https://doi.org/10.1145/3569951.3597591) at the PEARC23 conference on Scaling up the IndySCC. + - Student programming committee member (Students@SC committee). +- **SuperComputing 2021** + - Co-chair of a new education-focused track of the student cluster competition – the [IndySCC](https://sc21.supercomputing.org/program/studentssc/indyscc/), with an emphasis on lowering entry barriers and inclusivity. + - Pedagogical research [paper](https://doi.org/10.1145/3491418.3535153) at [PEARC22](https://pearc.acm.org/pearc22/) conference on IndySCC. -## Peer review +### Campus Champions -**Journals** — Structural and Multidisciplinary Optimization · AIAA Journal of Aerospace Information Systems · Advances in Materials and Processing Technologies · Engineering Computations · Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering +- Campus champion for the University of California San Diego + - NSF ACCESS Campus Champion allocation (~750,000 core hours). + - Informational [paper](https://doi.org/10.1145/3569951.3597549) at PEARC23 conference Towards Developing a Guide to Choosing National HPC Resources. -**Conferences** — AIAA SciTech Forum · AIAA Aviation Forum · ACM/IEEE SuperComputing Student Cluster Competition +## Peer Review -## Institutional service +### Journals -**Virginia Tech** (2024–present) -: Undergraduate Curriculum Committee · Mason Memorial Lecture Committee +- Structural and Multidisciplinary Optimization +- AIAA Journal of Aerospace Information Systems +- Advances in Materials and Processing Technologies +- Engineering Computations +- Proceedings of the Institution of Mechanical Engineers Part G: Journal of Aerospace Engineering -**University of California San Diego** -: Student mentoring · judge, UC LEADS 2023 poster competition +### Conferences -**Georgia Institute of Technology** -: Student representative, Institute Graduate Curriculum Committee +- AIAA SciTech Forum +- AIAA Aviation Forum +- ACM/IEEE SuperComputing Student Cluster Competition + +## Academic Service + +### Virginia Tech + +- Undergraduate Curriculum Committee 2024-Present +- Mason Memorial Lecture Committee 2024-Present + - Dr. John Langford, Co-founder and Board Chairman, [Electra.aero](https://www.electra.aero/) 2025 + - Dr. Dimitri Mavris, Professor, Georgia Tech 2024 + +### University of California San Diego + +- Mentoring students + - Rajashekhar Swaminathan [M.S. thesis; advisor: John Hwang]. + - Huaiyu Hou [M.S. thesis; advisor: John Hwang]. + - Mentored two undergraduate students, Omar Ibrahim Alfonseca Navarrete and Ernesto Montano Alvares, from Latin America as part of the [ENLACE Program](https://summer.ucsd.edu/program-finder/enlace.html) in Summer 2023 to expose them to research methods and effective communication, teamwork, and time management skills. +- University of California Leadership Excellence through Advanced Degrees (UC LEADS) 2023 + - Undergraduate poster competition judge. + +### Georgia Institute of Technology + +- [Institute Graduate Curriculum Committee (IGCC)](https://policylibrary.gatech.edu/faculty-handbook/2.6.8-institute-graduate-curriculum-committee) at Georgia Institute of Technology. Student representative of the Student Government Association at the committee. + + diff --git a/_pages/teaching.md b/_pages/teaching.md index db6f053..23a45aa 100644 --- a/_pages/teaching.md +++ b/_pages/teaching.md @@ -4,28 +4,32 @@ title: teaching permalink: /teaching/ description: Courses taught and teaching activities. nav: true -nav_order: 5 +nav_order: 6 --- ## Virginia Tech -- **AOE 4065 — Air Vehicle Design I** · Fall 2024, Fall 2025 -- **AOE 4066 — Air Vehicle Design II** · Spring 2025, Spring 2026 +- AOE 4065: Air Vehicle Design I + - Fall 2024; Fall 2025 +- AOE 4066: Air Vehicle Design II + - Spring 2025; Spring 2026 -Reference material for the Air Vehicle Design sequence is published in the [AVD Reference Library](/air-vehicle-design/), organized by design-process phase. +Reference material for the Air Vehicle Design sequence is published in the [AVD Reference Library](/air-vehicle-design/). ## University of California San Diego -- **MAE 155A — Aerospace Engineering Design I** · Winter 2023 — lecture on systems engineering -- **MAE 270 — Multidisciplinary Design Optimization** · Winter 2023 — lecture on topology optimization +### Past courses + +- [Winter 2023] MAE 155A: Aerospace Engineering Design I: Lecture on systems engineering +- [Winter 2023] MAE 270: Multidisciplinary Design Optimization: Lecture on topology optimization ## Georgia Institute of Technology -- **AE 6344 — Aircraft Design II** · Spring 2021, Spring 2022 — lectures on structural analysis, structural sizing, and multidisciplinary design optimization -- **AE 6394 — System of Systems Engineering Applications** · Spring 2021 — teaching assistant -- **AE 4351 — AE Design Project II** · Spring 2017 — teaching assistant -- **AE 4350 — AE Design Project I** · Fall 2016 — teaching assistant +- [Spring 2021, Spring 2022] AE-6344: Aircraft Design II: Lectures on structural analysis, structural sizing, multidisciplinary design optimizations +- [Spring 2021] AE-6394: System of Systems Engineering Applications: TA +- [Spring 2017] AE-4351: AE Design Project II: TA +- [Fall 2016] AE-4350: AE Design Project I: TA -## Teaching preparation +### Other teaching-related activities -Completed the **Tech to Teaching** certificate through Georgia Tech's Center for Teaching and Learning, comprising two graduate-level pedagogy courses and a capstone teaching experience. +- Tech to Teaching Certificate by the Center for Teaching and Learning. Completed two graduate-level courses to prepare future faculty in pedagogy and course design and a capstone teaching experience diff --git a/_projects/10_fan_stage_distorted_flow.md b/_projects/10_fan_stage_distorted_flow.md index 840f573..f71ac0b 100644 --- a/_projects/10_fan_stage_distorted_flow.md +++ b/_projects/10_fan_stage_distorted_flow.md @@ -1,11 +1,25 @@ --- layout: page -title: Aero-Structural Design of a Fan Stage under Distorted Flow -description: Variational Asymptotic Method applied to transient fan rotor blade analysis +title: Conceptual Aero-Structural Design of a Fan Stage under Distorted Flow +description: Variational Asymptotic Method for transient fan rotor blade analysis importance: 5 category: completed --- -**Role:** Collaborator on the PhD thesis of Manish Pokhrel +- Representation of the fan blade as a higher-order beam model through the Variational Asymptotic Method (VAM) + - First reported work of using the VAM for the transient structural analysis of fan rotor blades. +- Rotor structural analysis comprises computing dynamic stresses, the excitation frequencies, and resonance margins at various modes of vibration +- Capture trade-off between aerodynamic performance and structural constraints + - Obtained a design that considers structural constraints with a decrease of aerodynamic stage efficiency of only 0.22%. -Represents the fan blade as a higher-order beam model through the Variational Asymptotic Method (VAM) — the first reported work applying VAM to transient structural analysis of fan rotor blades. Rotor structural analysis covers dynamic stress computation, excitation frequency determination, and resonance margin calculation across vibration modes. The resulting design satisfies structural constraints at a cost of only 0.22% in aerodynamic stage efficiency. +{% include figure.liquid path="assets/img/research/fan-stage-distorted-flow/01-frequency-vs-rpm.png" alt="Frequency vs. RPM plot for different modes" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/fan-stage-distorted-flow/02-stress-limit-curve.png" alt="Mean stress and alternating stress and the limit curve" class="img-fluid rounded z-depth-1" %} + +Role: Collaborator on Ph.D. thesis of [Manish Pokhrel](https://www.linkedin.com/in/manish-pokhrel/) + +#### Publications + +Pokhrel, M., Sarojini, D., & Mavris, D. N. (2023). [Conceptual aero-structural design of a fan stage under distorted flow](https://journals.sagepub.com/doi/abs/10.1177/09544100231153910). Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. [[Download from ResearchGate](https://www.researchgate.net/publication/367523346_Conceptual_aero-structural_design_of_a_fan_stage_under_distorted_flow)] + +Pokhrel, M., Sarojini, D., & Mavris, D. (2020). [Conceptual level optimization of a fan stage under distortion considering aero-structural constraints](https://arc.aiaa.org/doi/abs/10.2514/6.2020-3115). In AIAA AVIATION 2020 Forum (p. 3115). diff --git a/_projects/11_rade.md b/_projects/11_rade.md index 82eca2d..a7c2820 100644 --- a/_projects/11_rade.md +++ b/_projects/11_rade.md @@ -6,6 +6,27 @@ importance: 6 category: completed --- -**Role:** Postdoctoral scholar at ASDL, with Dr. Jason Corman +Rapid geometry manipulation of conventional and unconventional aircraft. -A tool for rapid geometry manipulation of conventional and unconventional aircraft, covering outer mold line modification and automated wingbox structural layout. It provides an API to interface with physics-based solvers: AVL for low-fidelity aerodynamics, Nastran for structural and aeroelastic analysis, and HyperSizer for structural sizing. +- Modification of the outer mold line (OML) +- Automated wingbox structural layout + +API to interface with physics-based solvers + +- AVL for low-fidelity aerodynamics +- Nastran for structural and aeroelastic analysis +- Hypersizer for structural sizing + +{% include figure.liquid path="assets/img/research/rade/01-structural-configurations.png" alt="Different aircraft structural configurations" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/rade/02-crm-configurations.png" alt="CRM aircraft structural configurations" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/rade/03-pegasus-configurations.png" alt="PEGASUS aircraft structural configurations" class="img-fluid rounded z-depth-1" %} + +Role: Postdoctoral scholar working at ASDL Lab with Dr. Jason Corman + +Sarojini, D., Solano, H. D., Corman, J. A., & Mavris, D. N. (2022). [Parametric Wingbox Structural Weight Estimation of the CRM, PEGASUS and Truss-Braced Wing Concepts](https://arc.aiaa.org/doi/abs/10.2514/6.2022-4054). In AIAA AVIATION 2022 Forum (p. 4054). [[Download from ResearchGate](https://www.researchgate.net/publication/361475826_Parametric_Wingbox_Structural_Weight_Estimation_of_the_CRM_PEGASUS_and_Truss-Braced_Wing_Concepts)] + +#### Slides + +- [Aviation 2022 CRM, PEGASUS, TBW Weight Estimation](https://drive.google.com/file/d/1RnXmvTEYL1pDsXRpd8Zl0LzTUpsKxbe4/view?usp=sharing) diff --git a/_projects/12_delphi.md b/_projects/12_delphi.md index c10c3cc..9d30b5e 100644 --- a/_projects/12_delphi.md +++ b/_projects/12_delphi.md @@ -1,11 +1,29 @@ --- layout: page title: Dynamic Environment for Loads Prediction and Handling Investigation (DELPHI) -description: Six-degree-of-freedom flight dynamics simulation with pluggable models +description: Six-degree-of-freedom flight dynamics simulation tool importance: 7 category: completed --- -**Role:** Postdoctoral scholar at ASDL, with Dr. Evan Harrison +6 degrees of freedom flight dynamics simulation tool -A six-degree-of-freedom flight dynamics simulation tool whose API accepts any aerodynamic, propulsion, and mass properties model. Aircraft may be defined with arbitrary numbers of propulsion devices and control surfaces. A closed-loop control system supports prediction of regulation-specified dynamic maneuvers and handling qualities. +- API allows for any aerodynamic, propulsion, and mass properties model to be provided +- Define aircraft with an arbitrary number of propulsion devices and control surfaces +- Closed-loop control system +- Emphasis on prediction of regulation specified dynamic maneuvers and handling qualities + +{% include figure.liquid path="assets/img/research/delphi/01-flowchart.png" alt="Flowchart of DELPHI" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/delphi/02-time-domain-simulation.png" alt="Time domain simulation plots" class="img-fluid rounded z-depth-1" %} + +Role: Postdoctoral scholar working at ASDL Lab with Dr. Evan Harrison + +Sarojini, D., Harrison, E., & Mavris, D. N. (2021). [Dynamic Environment for Loads Prediction and Handling Investigation (DELPHI)](https://arc.aiaa.org/doi/abs/10.2514/6.2021-0326). In AIAA Scitech 2021 Forum (p. 0326). [[Download from ResearchGate](https://www.researchgate.net/publication/348257348_Dynamic_Environment_for_Loads_Prediction_and_Handling_Investigation_DELPHI)] + +#### Slides and videos + +- [SciTech 2021 DELPHI](https://drive.google.com/file/d/1YPis23rEQ0O4ydFlAJnUI2jvFwgVnTJT/view?usp=drive_link) +- [Checked Pitch Manuever](https://drive.google.com/file/d/1HPH5WLNx778DjDu0cZv3H7VKCXwrhsXE/view?usp=drive_link) +- [Rudder Kick Maneuver](https://drive.google.com/file/d/1l8cihHUC6kSs7mF-iFB1NkBdf0SwLYzg/view?usp=drive_link) +- [Roll Maneuver](https://drive.google.com/file/d/1bZ017WoIwwOoyxNCmBnB94C4g9OlfiYs/view?usp=drive_link) diff --git a/_projects/13_beam_models_wingbox.md b/_projects/13_beam_models_wingbox.md index 7bae738..481d9a3 100644 --- a/_projects/13_beam_models_wingbox.md +++ b/_projects/13_beam_models_wingbox.md @@ -6,6 +6,19 @@ importance: 8 category: completed --- -**Role:** PhD thesis, ASDL, Georgia Tech +The research involves exploring physics-based model reduction to create a simplified beam model representation of the aircraft wing primary structure. -Explores physics-based model reduction to produce a simplified beam representation of aircraft wing primary structure, built on OpenMDAO with CasADi automating derivative computation. It handles arbitrary cross-sections, dynamic loads, both strength and buckling constraints, and multiple beam members connected by joints carrying masses and point loads, with a one-time correction from the higher-order Variational Asymptotic Method. Against higher-fidelity shell models, predicted weight differs by less than 5% with a 12x speed-up, even for configurations as complex as the truss-braced wing. +- Developed using the modular OpenMDAO platform and CasADi to automate derivative computations. +- Consider arbitrary cross-sections, dynamic loads, both strength and buckling structural constraints, and can model multiple beam members connected by joints, as well as the addition of multiple masses and point loads. +- The scientific contribution of the research lies in the development of a one-time correction using the higher-order Variational Asymtotic Method (VAM). +- Weight predicted by the beam model compared to higher-fidelity shell models was reduced to < 5% difference with a 12x speed-up, even for complex aircraft configurations like the truss-braced wing. + +{% include figure.liquid path="assets/img/research/beam-models-wingbox/01-tbw-beam-model.png" alt="Beam model of the truss-braced wing" class="img-fluid rounded z-depth-1" %} + +Role: Ph.D. thesis at ASDL lab at Georgia Tech + +Sarojini, D., & Mavris, D. (2022). [Structural Analysis and Optimization of Wings Subjected to Dynamic Loads](https://doi.org/10.2514/1.J060931). AIAA Journal, 60(2), 1013-1023. [[Download from ResearchGate](https://www.researchgate.net/publication/354980737_Structural_Analysis_and_Optimization_of_Wings_Subjected_to_Dynamic_Loads)] + +#### Slides + +- [WCSMO-14 Beam Preconditioning](https://drive.google.com/file/d/1ZRhKVd2V8cQFF-_ISPzF7IVoj7iV3TOD/view?usp=sharing) diff --git a/_projects/14_break_apart_uas.md b/_projects/14_break_apart_uas.md new file mode 100644 index 0000000..76e272f --- /dev/null +++ b/_projects/14_break_apart_uas.md @@ -0,0 +1,15 @@ +--- +layout: page +title: Design of Break-Apart Mechanisms for UAS +description: Commanded in-flight disassembly for safe operation over people +importance: 9 +category: completed +--- + +Sponsor: Prius Intelli LLC + +PI: Dr. Rakesh Kapania + +Phase I: January 1, 2025 to July 15, 2025; Phase II: July 16, 2025 to December 31, 2025 + +As part of the SafeUAS initiative led by Prius Intelli, our group is engaged in developing mechanisms that enable Unmanned Aerial Systems (UAS) to safely disassemble in flight under controlled, commanded conditions. The overarching goal is to ensure that disassembled components descend safely and meet the safety thresholds required for UAS operations over people in the National Airspace System (NAS). diff --git a/_projects/15_multifidelity_rom.md b/_projects/15_multifidelity_rom.md new file mode 100644 index 0000000..c11e949 --- /dev/null +++ b/_projects/15_multifidelity_rom.md @@ -0,0 +1,25 @@ +--- +layout: page +title: Multi-Fidelity Reduced-Order Modeling (ROM) +description: Manifold alignment to fuse high- and low-fidelity structural field outputs +importance: 10 +category: completed +--- + +The research applies a recently developed parametric, non-intrusive, and multi-fidelity ROM method on high-dimensional displacement and stress fields arising from structural analysis + +- Leverages manifold alignment to fuse inconsistent field outputs from high- and low-fidelity simulations by individually projecting their solution onto a common subspace. +- Outputs from structural simulations using incompatible grids, or related yet different topologies, are easily combined into a single predictive model, thus eliminating the need for additional preprocessing of the data. +- Achieves a relatively higher predictive accuracy at a lower computational cost when compared to a single-fidelity model. + +{% include figure.liquid path="assets/img/research/multifidelity-rom/multifidelity-rom-01.png" alt="Multi-fidelity reduced-order modeling" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/multifidelity-rom/multifidelity-rom-02.png" alt="Multi-fidelity reduced-order modeling" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/multifidelity-rom/multifidelity-rom-03.png" alt="Multi-fidelity reduced-order modeling" class="img-fluid rounded z-depth-1" %} + +Perron, C., Sarojini, D., Rajaram, D., Corman, J., & Mavris, D. (2022). [Manifold alignment-based multi-fidelity reduced-order modeling applied to structural analysis](https://link.springer.com/article/10.1007/s00158-022-03274-1). Structural and Multidisciplinary Optimization, 65(8), 236. [[Download from ResearchGate](https://www.researchgate.net/publication/362629574_Manifold_alignment-based_multi-fidelity_reduced-order_modeling_applied_to_structural_analysis)] + +#### Slides + +- [WCSMO-14 ROM](https://drive.google.com/file/d/18eNz63opHZ-EwUDypoN69WRWMvcrGxAj/view?usp=sharing) diff --git a/_projects/16_mbse_rflp.md b/_projects/16_mbse_rflp.md new file mode 100644 index 0000000..11baf89 --- /dev/null +++ b/_projects/16_mbse_rflp.md @@ -0,0 +1,22 @@ +--- +layout: page +title: Integrating MBSE and MDO through an Extended RFLP Framework +description: Requirements-Functional-Logical-Physical approach linking MBSE and MDO +importance: 11 +category: completed +--- + +- **Extended RFLP:** Extended the conventional RFLP framework to include two components: a product RFLP for the physical system and a novel process RFLP specifically designed for simulations, numerical models, and direct integration with MDO. +- **Unambiguous RFLP Rules:** Created clear rules for mapping requirements, functions, and logical components to physical and process representations. +- **Clear Delineation:** Separated MBSE development from MDO development, improving system model clarity and maintainability. + +{% include figure.liquid path="assets/img/research/mbse-rflp/rflp-01.png" alt="RFLP approach to integrate MBSE and MDO" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/mbse-rflp/rflp-02.png" alt="RFLP approach to integrate MBSE and MDO" class="img-fluid rounded z-depth-1" %} + +Swaminathan, R., Sarojini, D., & Hwang, J. T. (2023). [Integrating MBSE and MDO through an Extended Requirements-Functional-Logical-Physical (RFLP) Framework](https://arc.aiaa.org/doi/abs/10.2514/6.2023-3908). In AIAA AVIATION 2023 Forum (p. 3908). + +#### Slides + +- [Aircraft Concept Design RFLP](https://drive.google.com/file/d/1JyQVmYE6QkuHT24-qwKbaRTLrVno8v07/view?usp=sharing) +- [Wing Rib MBSE](https://drive.google.com/file/d/1jHhOhW9vmHvH03LAUn9JAc6A91qNBuLE/view?usp=sharing) diff --git a/_projects/1_regional_air_mobility.md b/_projects/1_regional_air_mobility.md index 5991555..1e4a2a1 100644 --- a/_projects/1_regional_air_mobility.md +++ b/_projects/1_regional_air_mobility.md @@ -1,13 +1,13 @@ --- layout: page -title: Regional Air Mobility in Appalachia -description: A framework for increased accessibility in overburdened communities +title: Advancing Regional Air Mobility in Appalachia +description: A Framework for Increased Accessibility in Overburdened Communities importance: 1 category: ongoing --- -**Sponsor:** NASA (September 2025 – August 2028) -**PI:** Darshan Sarojini -**Collaborators:** Dr. Antonio Trani (Virginia Tech), Marshall University, Vertx Partners +Sponsor: NASA (Sept 2025 to Aug 2028) -This project develops methods to assess the impact of regional air mobility (RAM) on overburdened regions across the country. +PI: Darshan Sarojini; Collaborators: Dr. Antonio Trani (VT), Marshall University, Vertx Partners + +This project develops methods to assess the impact of regional air mobility (RAM) on overburdened regions across the country. We will develop a framework combining aircraft design and door-to-door air transportation analysis. The framework will be applied to perform a comprehensive feasibility assessment of RAM in rural Appalachia from a geographic, operational, and socio-economic standpoint. diff --git a/_projects/2_certification_driven_design.md b/_projects/2_certification_driven_design.md index 18f44c6..3f245a5 100644 --- a/_projects/2_certification_driven_design.md +++ b/_projects/2_certification_driven_design.md @@ -1,6 +1,6 @@ --- layout: page -title: Certification-Driven Aircraft Design +title: Certification Driven Aircraft Design description: Embedding certification criteria directly into conceptual design importance: 2 category: ongoing @@ -8,4 +8,4 @@ category: ongoing Certification criteria shape the feasible design space and, therefore, must be embedded directly into conceptual aircraft design, not simply checked after the fact. -This work incorporates certification requirements — including reliability, handling qualities, and regulatory simulations — into multidisciplinary aircraft design frameworks. +This project develops methods to explicitly account for certification criteria, including reliability, handling qualities (HQ), and time-marching simulations specified by 14-CFR regulations into a large-scale MDAO framework for aircraft design. diff --git a/_projects/3_advanced_visualization.md b/_projects/3_advanced_visualization.md index c7851a6..672e445 100644 --- a/_projects/3_advanced_visualization.md +++ b/_projects/3_advanced_visualization.md @@ -1,13 +1,19 @@ --- layout: page title: Advanced Visualization Methods for Design -description: Web-based tools for 3D geometry and scientific data +description: Web-based visualization of 3-D geometry and scientific data importance: 3 category: ongoing --- -**Collaborators:** MathWorks, VT ARC Visionarium +This project develops web-based methods for 3-D geometries and 3-D scientific data and timeseries information visualizations into a common analytic user interface. -This initiative creates web-based tools for displaying three-dimensional geometries and scientific data within integrated analytical interfaces. +#### Examples -Worked examples are published in the lab's [interactive visualization gallery](/interactive-visualization/). +- [Fighter aircraft](https://metagrid1.sv.vt.edu/~sdarshan/aoe-4066-spring-2025/Team%205/expo_demo.html) + +{% include figure.liquid path="assets/img/research/advanced-visualization/01-fighter-cutaway.png" alt="A fighter aircraft cutaway with subsystems higlighted." class="img-fluid rounded z-depth-1" %} + +Collaborators: MathWorks, VT ARC Visionarium + +Further worked examples are published in the lab's [interactive visualization gallery](/interactive-visualization/). diff --git a/_projects/4_ocean_vehicle_mdo.md b/_projects/4_ocean_vehicle_mdo.md index 41f3b9b..977dbde 100644 --- a/_projects/4_ocean_vehicle_mdo.md +++ b/_projects/4_ocean_vehicle_mdo.md @@ -1,11 +1,11 @@ --- layout: page -title: Design Optimization of Ocean Vehicles -description: Large-scale MDO methods applied to maritime vessels +title: Design Optimization of Ocean Vehicles Using Large-Scale MDO Methods +description: Applying air-vehicle MDO methods to maritime systems importance: 4 category: ongoing --- -**Sponsor:** Fincantieri (Summer 2025 Fincantieri scholarship; recipient: Jeremy John) +This project explores the application of large-scale MDO methods, developed for air vehicles, to the design of ocean vehicles. The results will contribute to the advancement of cost-effective, high-performance maritime systems and inform future ship design methodologies. -This research applies multidisciplinary design optimization techniques developed for aerospace to maritime vessel design. +Sponsor: Fincantieri (Summer 2025 Fincantieri scholarship. Recipient: Jeremy John) diff --git a/_projects/5_break_apart_uas.md b/_projects/5_break_apart_uas.md deleted file mode 100644 index 6dc8c73..0000000 --- a/_projects/5_break_apart_uas.md +++ /dev/null @@ -1,13 +0,0 @@ ---- -layout: page -title: Break-Apart Mechanisms for UAS -description: Commanded in-flight disassembly of unmanned aerial systems -importance: 5 -category: ongoing ---- - -**Sponsor:** Prius Intelli LLC -**PI:** Dr. Rakesh Kapania -**Phase I:** January 1 – July 15, 2025 · **Phase II:** July 16 – December 31, 2025 - -Our group is engaged in developing mechanisms that enable Unmanned Aerial Systems (UAS) to safely disassemble in flight under controlled, commanded conditions. diff --git a/_projects/6_evtol_system_mdo.md b/_projects/6_evtol_system_mdo.md index 1d2fdaf..15690fd 100644 --- a/_projects/6_evtol_system_mdo.md +++ b/_projects/6_evtol_system_mdo.md @@ -1,12 +1,28 @@ --- layout: page title: Electric Air Taxi Concept System-Level MDO -description: Large-scale MDO with seven disciplines contributing to a system-level optimization +description: First-of-its-kind demonstration of large-scale MDO importance: 1 category: completed --- -**Funding:** NASA University Leadership Initiative (ULI) -**Role:** Postdoctoral scholar, with PI Dr. John Hwang +- First-of-its-kind demonstration of large-scale MDO + - 7 disciplines contributing design variables to system-level optimization + - 102 design variables; 19 constraints +- Low-fidelity physics-based analysis methods +- Turnaround time of ~30 minutes on a standard design computer +- 11.4% lower mass from a baseline sized vehicle -A first-of-its-kind demonstration of large-scale MDO with seven disciplines contributing design variables to a system-level optimization — 102 design variables and 19 constraints. Low-fidelity physics-based analysis kept turnaround to roughly 30 minutes on a standard design computer, yielding 11.4% lower mass than a baseline sized vehicle. +{% include figure.liquid path="assets/img/research/evtol-system-mdo/01-full-vs-baseline-mdo.png" alt="Full MDO can yield better results than baseline MDO." class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/evtol-system-mdo/02-baseline-vs-optimized.png" alt="A lift-plus-cruise eVTOL aircraft in its baseline and optimized configurations." class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/evtol-system-mdo/04-aircraft-sizing-framework.png" alt="Aircraft sizing framework" class="img-fluid rounded z-depth-1" %} + +Funding: NASA University Leadership Initiative (ULI) + +Role: Postdoctoral scholar working with PI Dr. John Hwang + +#### Select Publication + +Sarojini, D., Ruh, M. L., Joshy, A. J., Yan, J., Ivanov, A. K., Scotzniovsky, L., ... & Hwang, J. T. (2023). [Large-Scale Multidisciplinary Design Optimization of an eVTOL Aircraft using Comprehensive Analysis](https://arc.aiaa.org/doi/10.2514/6.2023-0146). In AIAA SCITECH 2023 Forum (p. 0146). [[Download from ResearchGate](https://www.researchgate.net/publication/367316748_Large-Scale_Multidisciplinary_Design_Optimization_of_an_eVTOL_Aircraft_using_Comprehensive_Analysis)] diff --git a/_projects/7_pegasus_tbw_structures.md b/_projects/7_pegasus_tbw_structures.md index a0a5322..99262fd 100644 --- a/_projects/7_pegasus_tbw_structures.md +++ b/_projects/7_pegasus_tbw_structures.md @@ -1,12 +1,23 @@ --- layout: page -title: Structural Design Space Exploration of PEGASUS and TBW -description: Effect of outer mold line, engine, and structural layout variables on structural weight +title: Structural Design Space Exploration of PEGASUS and TBW Concepts +description: Effect of OML, engine, and structural layout variables on structural weight importance: 2 category: completed --- -**Funding:** NASA Transformational Tools and Technologies (TTT) -**Role:** PhD thesis work; collaborator on the PhD thesis of David Solano +- No other work has shown the effect of high-level OML, engine, and structural layout variables on the structural weight +- PEGASUS concept + - Obtained a structural layout that is least sensitivities to gust loads specified by 14-CFR regulations. +- Truss-braced wing (TBW) concept + - Obtained the location of strut-wing attachment that results in the least overall primary structure weight. -No previous work had examined the effect of high-level outer mold line (OML), engine, and structural layout variables on structural weight. For the PEGASUS concept, this work obtained a structural layout with the least sensitivity to gust loads specified by 14-CFR regulations. For the Truss-Braced Wing (TBW) concept, it identified the strut-wing attachment location giving the least overall primary structure weight. +{% include figure.liquid path="assets/img/research/pegasus-tbw-structures/01-beam-vs-shell-tbw.png" alt="Beam model vs. shell model comparison for the truss-braced wing concept" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/pegasus-tbw-structures/02-wingbox-mass-gust-loads.png" alt="Wingbox mass for different gust loads for the PEGASUS concept" class="img-fluid rounded z-depth-1" %} + +Funding: NASA Transformational Tools and Technologies (TTT) + +Role: Ph.D. thesis work; collaborator on Ph.D. thesis of [David Solano](https://www.linkedin.com/in/david-solano-sarmiento-ab420894/) + +Solano, H. D., Sarojini, D., & Mavris, D. N. (2023). [Computationally Efficient Analysis and Sizing of the PEGASUS and Truss-Braced Wing Structures Subjected to Dynamic Loads](https://arc.aiaa.org/doi/abs/10.2514/6.2023-3943). In AIAA AVIATION 2023 Forum (p. 3943). [[Download from ResearchGate](https://www.researchgate.net/publication/371426168_Computationally_Efficient_Analysis_and_Sizing_of_the_PEGASUS_and_Truss-Braced_Wing_Structures_Subjected_to_Dynamic_Loads)] diff --git a/_projects/8_certification_driven_mdo.md b/_projects/8_certification_driven_mdo.md index eb6009e..05947c7 100644 --- a/_projects/8_certification_driven_mdo.md +++ b/_projects/8_certification_driven_mdo.md @@ -1,11 +1,21 @@ --- layout: page title: Certification-Driven MDO of Aircraft -description: Trade-offs between performance and certification constraints +description: Trade-off between performance and certification constraints importance: 3 category: completed --- -**Role:** Collaborator on the PhD thesis of Jiacheng Xie +- Capture trade-off between performance and certification constraints + - 14-CFR Part 25 SubPart B Flight Characteristics + - 14-CFR Part 25 SubPart C Structures +- Retrofit design of a Boeing 777-type aircraft horizontal tail +- Redesign of NASA's PEGASUS concept vertical tail -Captures the trade-off between performance and certification constraints, including 14-CFR Part 25 Subpart B (Flight Characteristics) and Subpart C (Structures). Applications include retrofit design of a Boeing 777-type horizontal tail and redesign of the vertical tail for NASA's PEGASUS concept. +{% include figure.liquid path="assets/img/research/certification-driven-mdo/01-certification-design-space.png" alt="How different certification constraints shape the design space." class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/certification-driven-mdo/02-certification-design-space.png" alt="How different certification constraints shape the design space." class="img-fluid rounded z-depth-1" %} + +Role: Collaborator on Ph.D. thesis of [Jiacheng Xie](https://www.linkedin.com/in/jiacheng-albert-xie/) + +Xie, J., Sarojini, D., Cai, Y., Corman, J. A., & Mavris, D. N. (2022). [Certification-Driven Platform for Multidisciplinary Design Space Exploration in Airframe Preliminary Design](https://doi.org/10.2514/1.C036328). Journal of Aircraft, 59(2), 329-349. [[Download from ResearchGate](https://www.researchgate.net/publication/355769426_Certification-Driven_Platform_for_Multidisciplinary_Design_Space_Exploration_in_Airframe_Preliminary_Design)] diff --git a/_projects/9_x57_reliability.md b/_projects/9_x57_reliability.md index aecdcc1..89c0471 100644 --- a/_projects/9_x57_reliability.md +++ b/_projects/9_x57_reliability.md @@ -1,11 +1,23 @@ --- layout: page title: Reliability-Based Design of the X-57 Concept -description: Safety assessment and off-nominal performance for distributed electric propulsion +description: Safety assessment of off-nominal performance and reliability importance: 4 category: completed --- -**Role:** Collaborator on the PhD thesis of Mayank Bendarkar +- Safety assessment framework to evaluate off-nominal performance and reliability +- Bayesian decision framework to make a compliance assessment +- Case study on the distributed electric propulsion (DEP) aircraft, X-57. Identified + - Battery failure as a catastrophic scenario. + - Loss of cruise motor or the traction power buses as the next most critical (Hazardous). -Implements a safety assessment framework for off-nominal performance and reliability, using a Bayesian decision framework for compliance assessment. A case study on the X-57 distributed electric propulsion aircraft identified battery failure as a catastrophic scenario, with loss of the cruise motor or traction power buses the next most critical hazardous failures. +{% include figure.liquid path="assets/img/research/x57-reliability/01-reliability-framework.png" alt="Framework to include reliability assessments" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/x57-reliability/02-reliability-flowchart.png" alt="Flowchart to computations for reliability assessments" class="img-fluid rounded z-depth-1" %} + +{% include figure.liquid path="assets/img/research/x57-reliability/03-hazard-safety-analysis.png" alt="Hazard safety analysis and Bayesian compliance assessment" class="img-fluid rounded z-depth-1" %} + +Role: Collaborator on Ph.D. thesis of [Mayank Bendarkar](https://www.linkedin.com/in/mayank-bendarkar-865a6a66/) + +Bendarkar, M. V., Sarojini, D., & Mavris, D. N. (2022). [Off-Nominal Performance and Reliability of Novel Aircraft Concepts During Early Design](https://doi.org/10.2514/1.C036395). Journal of Aircraft, 59(2), 400-414. [[Download from ResearchGate](https://www.researchgate.net/publication/356646563_Off-Nominal_Performance_and_Reliability_of_Novel_Aircraft_Concepts_During_Early_Design)] diff --git a/assets/img/news/.gitkeep b/assets/img/news/.gitkeep new file mode 100644 index 0000000..5e51c3c --- /dev/null +++ b/assets/img/news/.gitkeep @@ -0,0 +1,16 @@ +Put news images here, grouped by year: assets/img/news/2026/flight-school.jpg + +Then reference one from any file in _news/ : + + --- + layout: post + date: 2026-07-01 + inline: true + related_posts: false + image: news/2026/flight-school.jpg + image_alt: Students touring the Bill Noe Flight School + image_width: 260 # optional, px; defaults to 220 + --- + +The image renders on both the homepage announcements and /news/. +Items without an `image:` key are unaffected. diff --git a/assets/img/news/2023/.gitkeep b/assets/img/news/2023/.gitkeep new file mode 100644 index 0000000..e69de29 diff --git a/assets/img/news/2024/.gitkeep b/assets/img/news/2024/.gitkeep new file mode 100644 index 0000000..e69de29 diff --git a/assets/img/news/2025/.gitkeep b/assets/img/news/2025/.gitkeep new file mode 100644 index 0000000..e69de29 diff --git a/assets/img/news/2026/.gitkeep b/assets/img/news/2026/.gitkeep new file mode 100644 index 0000000..e69de29 diff --git a/assets/img/people/casey-chamberlain.jpg b/assets/img/people/casey-chamberlain.jpg new file mode 100644 index 0000000..919ed97 Binary files /dev/null and b/assets/img/people/casey-chamberlain.jpg differ diff --git a/assets/img/people/darshan-sarojini.jpg b/assets/img/people/darshan-sarojini.jpg new file mode 100644 index 0000000..5c73af4 Binary files /dev/null and b/assets/img/people/darshan-sarojini.jpg differ diff --git a/assets/img/people/dylan-hogge.png b/assets/img/people/dylan-hogge.png new file mode 100644 index 0000000..f0d9ec4 Binary files /dev/null and b/assets/img/people/dylan-hogge.png differ diff --git a/assets/img/people/grant-lee.png b/assets/img/people/grant-lee.png new file mode 100644 index 0000000..e9d1994 Binary files /dev/null and b/assets/img/people/grant-lee.png differ diff --git a/assets/img/people/jeremy-john.png b/assets/img/people/jeremy-john.png new file mode 100644 index 0000000..27c159e Binary files /dev/null and b/assets/img/people/jeremy-john.png differ diff --git a/assets/img/people/joseph-gould.png b/assets/img/people/joseph-gould.png new file mode 100644 index 0000000..afba640 Binary files /dev/null and b/assets/img/people/joseph-gould.png differ diff --git a/assets/img/people/khoa-nguyen.jpg b/assets/img/people/khoa-nguyen.jpg new file mode 100644 index 0000000..bf93ed8 Binary files /dev/null and b/assets/img/people/khoa-nguyen.jpg differ diff --git a/assets/img/people/krish-bhatt.jpg b/assets/img/people/krish-bhatt.jpg new file mode 100644 index 0000000..232eaa3 Binary files /dev/null and b/assets/img/people/krish-bhatt.jpg differ diff --git a/assets/img/people/nathan-shune.png b/assets/img/people/nathan-shune.png new file mode 100644 index 0000000..b2e32b7 Binary files /dev/null and b/assets/img/people/nathan-shune.png differ diff --git a/assets/img/people/quinn-mciver.jpg b/assets/img/people/quinn-mciver.jpg new file mode 100644 index 0000000..f8d435e Binary files /dev/null and b/assets/img/people/quinn-mciver.jpg differ diff --git a/assets/img/people/sanjana-anem.jpg b/assets/img/people/sanjana-anem.jpg new file mode 100644 index 0000000..64e06bb Binary files /dev/null and b/assets/img/people/sanjana-anem.jpg differ diff --git a/assets/img/research/advanced-visualization/01-fighter-cutaway.png b/assets/img/research/advanced-visualization/01-fighter-cutaway.png new file mode 100644 index 0000000..4fb95fa Binary files /dev/null and b/assets/img/research/advanced-visualization/01-fighter-cutaway.png differ diff --git a/assets/img/research/beam-models-wingbox/01-tbw-beam-model.png b/assets/img/research/beam-models-wingbox/01-tbw-beam-model.png new file mode 100644 index 0000000..eafaa64 Binary files /dev/null and b/assets/img/research/beam-models-wingbox/01-tbw-beam-model.png differ diff --git a/assets/img/research/certification-driven-mdo/01-certification-design-space.png b/assets/img/research/certification-driven-mdo/01-certification-design-space.png new file mode 100644 index 0000000..64bce46 Binary files /dev/null and b/assets/img/research/certification-driven-mdo/01-certification-design-space.png differ diff --git a/assets/img/research/certification-driven-mdo/02-certification-design-space.png b/assets/img/research/certification-driven-mdo/02-certification-design-space.png new file mode 100644 index 0000000..9220ae0 Binary files /dev/null and b/assets/img/research/certification-driven-mdo/02-certification-design-space.png differ diff --git a/assets/img/research/delphi/01-flowchart.png b/assets/img/research/delphi/01-flowchart.png new file mode 100644 index 0000000..aa273c8 Binary files /dev/null and b/assets/img/research/delphi/01-flowchart.png differ diff --git a/assets/img/research/delphi/02-time-domain-simulation.png b/assets/img/research/delphi/02-time-domain-simulation.png new file mode 100644 index 0000000..1414a21 Binary files /dev/null and b/assets/img/research/delphi/02-time-domain-simulation.png differ diff --git a/assets/img/research/evtol-system-mdo/01-full-vs-baseline-mdo.png b/assets/img/research/evtol-system-mdo/01-full-vs-baseline-mdo.png new file mode 100644 index 0000000..2b76c9c Binary files /dev/null and b/assets/img/research/evtol-system-mdo/01-full-vs-baseline-mdo.png differ diff --git a/assets/img/research/evtol-system-mdo/02-baseline-vs-optimized.png b/assets/img/research/evtol-system-mdo/02-baseline-vs-optimized.png new file mode 100644 index 0000000..9bb70aa Binary files /dev/null and b/assets/img/research/evtol-system-mdo/02-baseline-vs-optimized.png differ diff --git a/assets/img/research/evtol-system-mdo/03-featured-baseline-vs-optimized.png b/assets/img/research/evtol-system-mdo/03-featured-baseline-vs-optimized.png new file mode 100644 index 0000000..d0b89b5 Binary files /dev/null and b/assets/img/research/evtol-system-mdo/03-featured-baseline-vs-optimized.png differ diff --git a/assets/img/research/evtol-system-mdo/04-aircraft-sizing-framework.png b/assets/img/research/evtol-system-mdo/04-aircraft-sizing-framework.png new file mode 100644 index 0000000..a890aa3 Binary files /dev/null and b/assets/img/research/evtol-system-mdo/04-aircraft-sizing-framework.png differ diff --git a/assets/img/research/fan-stage-distorted-flow/01-frequency-vs-rpm.png b/assets/img/research/fan-stage-distorted-flow/01-frequency-vs-rpm.png new file mode 100644 index 0000000..0b73188 Binary files /dev/null and b/assets/img/research/fan-stage-distorted-flow/01-frequency-vs-rpm.png differ diff --git a/assets/img/research/fan-stage-distorted-flow/02-stress-limit-curve.png b/assets/img/research/fan-stage-distorted-flow/02-stress-limit-curve.png new file mode 100644 index 0000000..f502d4c Binary files /dev/null and b/assets/img/research/fan-stage-distorted-flow/02-stress-limit-curve.png differ diff --git a/assets/img/research/mbse-rflp/rflp-01.png b/assets/img/research/mbse-rflp/rflp-01.png new file mode 100644 index 0000000..2ceec09 Binary files /dev/null and b/assets/img/research/mbse-rflp/rflp-01.png differ diff --git a/assets/img/research/mbse-rflp/rflp-02.png b/assets/img/research/mbse-rflp/rflp-02.png new file mode 100644 index 0000000..50113f0 Binary files /dev/null and b/assets/img/research/mbse-rflp/rflp-02.png differ diff --git a/assets/img/research/multifidelity-rom/multifidelity-rom-01.png b/assets/img/research/multifidelity-rom/multifidelity-rom-01.png new file mode 100644 index 0000000..82de5e5 Binary files /dev/null and b/assets/img/research/multifidelity-rom/multifidelity-rom-01.png differ diff --git a/assets/img/research/multifidelity-rom/multifidelity-rom-02.png b/assets/img/research/multifidelity-rom/multifidelity-rom-02.png new file mode 100644 index 0000000..cb70775 Binary files /dev/null and b/assets/img/research/multifidelity-rom/multifidelity-rom-02.png differ diff --git a/assets/img/research/multifidelity-rom/multifidelity-rom-03.png b/assets/img/research/multifidelity-rom/multifidelity-rom-03.png new file mode 100644 index 0000000..f0cccdf Binary files /dev/null and b/assets/img/research/multifidelity-rom/multifidelity-rom-03.png differ diff --git a/assets/img/research/pegasus-tbw-structures/01-beam-vs-shell-tbw.png b/assets/img/research/pegasus-tbw-structures/01-beam-vs-shell-tbw.png new file mode 100644 index 0000000..69d07e8 Binary files /dev/null and b/assets/img/research/pegasus-tbw-structures/01-beam-vs-shell-tbw.png differ diff --git a/assets/img/research/pegasus-tbw-structures/02-wingbox-mass-gust-loads.png b/assets/img/research/pegasus-tbw-structures/02-wingbox-mass-gust-loads.png new file mode 100644 index 0000000..cd733ee Binary files /dev/null and b/assets/img/research/pegasus-tbw-structures/02-wingbox-mass-gust-loads.png differ diff --git a/assets/img/research/rade/01-structural-configurations.png b/assets/img/research/rade/01-structural-configurations.png new file mode 100644 index 0000000..31be62a Binary files /dev/null and b/assets/img/research/rade/01-structural-configurations.png differ diff --git a/assets/img/research/rade/02-crm-configurations.png b/assets/img/research/rade/02-crm-configurations.png new file mode 100644 index 0000000..36ea234 Binary files /dev/null and b/assets/img/research/rade/02-crm-configurations.png differ diff --git a/assets/img/research/rade/03-pegasus-configurations.png b/assets/img/research/rade/03-pegasus-configurations.png new file mode 100644 index 0000000..07cb965 Binary files /dev/null and b/assets/img/research/rade/03-pegasus-configurations.png differ diff --git a/assets/img/research/x57-reliability/01-reliability-framework.png b/assets/img/research/x57-reliability/01-reliability-framework.png new file mode 100644 index 0000000..857bd62 Binary files /dev/null and b/assets/img/research/x57-reliability/01-reliability-framework.png differ diff --git a/assets/img/research/x57-reliability/02-reliability-flowchart.png b/assets/img/research/x57-reliability/02-reliability-flowchart.png new file mode 100644 index 0000000..e47e2b8 Binary files /dev/null and b/assets/img/research/x57-reliability/02-reliability-flowchart.png differ diff --git a/assets/img/research/x57-reliability/03-hazard-safety-analysis.png b/assets/img/research/x57-reliability/03-hazard-safety-analysis.png new file mode 100644 index 0000000..a906a3b Binary files /dev/null and b/assets/img/research/x57-reliability/03-hazard-safety-analysis.png differ diff --git a/bin/copy-viz.sh b/bin/copy-viz.sh old mode 100644 new mode 100755