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Texas A&M University College of Engineering

Hannah Lehman

McQuinn awarded Doctoral Research Excellence Assistantship

Posted on July 14, 2025 by Hannah Lehman

PhD student Cassie-Kay McQuinn was awarded the Texas A&M University Doctoral Research Excellence Assistantship (DREA). The DREA provides fully funded doctoral assistantships and aims to attract top-tier doctoral students. The assistantship is designed to enhance Texas A&M’s research capacity and productivity thus fortifying the university’s reputation as a leading research institution and facilitate groundbreaking contributions to various fields of study. The DREA is award by the university to only four students annually with selection criteria based on demonstrated academic excellence, relevant experiences beyond the classroom, and research potential. Cassie-Kay’s selection reflects not only her academic excellence but also her commitment to advancing knowledge and contributing meaningfully to her field.

McQuinn graduated with a B.S. and M.S. in Aerospace Engineering from Texas A&M, and has been an active member of VSCL since 2021. Throughout her tenure as a student she has been involved in several leadership and engineering organizations including serving as the president of the Texas A&M chapter of Sigma Gamma Tau, the national aerospace engineering honor society. As a graduate student she has interned with Sandia National Labs as a research and development intern. Since 2023 she has interned with the Air Force Research Lab’s Autonomous Capabilities Team (ACT3) where her work on safety assurance and multi-constraint satisfaction contributes to the  Safe Trusted Autonomy for Responsible Spacecraft (STARS) program.

Congratulations Cassie-Kay!

Filed Under: Awards

McQuinn Awarded the Stanger Endowed Graduate Fellowship

Posted on August 14, 2024 by Hannah Lehman

Cassie-Kay McQuinn was selected as the recipient of the Stanger Endowed Graduate Fellowship. Established by Dianna Stanger, the fellowship provides academic freedom to selected fellows by providing a portion of their support for two years. The goal of the fellowship is to give students the confidence they need to pursue their dreams regardless of the obstacles that are in their way. The selection process for the fellowship focuses on how the student plans to leverage their Ph.D. toward the greater good and on ways in which the student has shown commitment to advancing women’s participation and inclusion in Aerospace Engineering and other STEM fields. 

Cassie-Kay was an active member of Club of Females in Engineering (CAFE) throughout her undergraduate studies. This organization highlights the importance of academic excellence, career development, and providing a community for women studying engineering. As a graduate student she has been actively involved in student mentorship through the VSCL and Sigma Gamma Tau (SGT), where she served as the president in 2022. Cassie-Kay wants to leverage her skill set and experience to bring technology and therefore encouragement to people and students who do not have access to resources or the support to pursue a STEM career.

 

Filed Under: Awards

Cassie-Kay McQuinn Graduates with Masters

Posted on August 14, 2024 by Hannah Lehman

Cassie-Kay McQuinn graduated with her MS degree in aerospace engineering. Cassie is the 60th graduate student advised to completion of their degree by Dr. Valasek, and the title of her thesis is “Online Near-Real Time Open-Loop System Identification from Closed-Loop Flight Test Data”. This work is sponsored by the National Science Foundation (NSF) Center for Autonomous Air Mobility & Sensing (CAAMS) as one part of the project “Integration of System Theory with Machine Learning Tools for Data Driven System Identification”. Cassie investigated identifying state-space linear dynamic models generated onboard in near-real time, for vehicles with and without an active flight controller.

Cassie is continuing on to the PhD with VSCL, and her dissertation will be based upon work she has been conducting on STARS (Safe Trusted Autonomy for Responsible Spacecraft) during a year-round internship for the Air Force Research Laboratory.

        

Filed Under: Graduation

McQuinn Awarded the J. Malon Southerland ’65 Leadership Scholarship

Posted on May 15, 2024 by Hannah Lehman

VSCL graduate student Cassie-Kay McQuinn is the recipient of the J. Malon Southerland Aggie Leader Scholarship. The J. Malon Southerland Aggie Leader Scholarship program was created to recognize and reward students involvement at Texas A&M University. The scholarship was named in honor of J. Malon Southerland, former TAMU Vice President for Student Affairs. While a student at Texas A&M Cassie-Kay has been involved in leadership through membership of the Student Engineers’ Council (SEC), completion of the Zachry Leadership Program (ZLP), and has been Vice President then President of the Texas A&M chapter of Sigma Gamma Tau (SGT) the National Honor Society for Aerospace Engineering.

Filed Under: Awards

Cassie-Kay McQuinn Defends Masters Thesis

Posted on May 6, 2024 by Hannah Lehman

Cassie-Kay McQuinn (B.S. Aerospace Engineering, TAMU) successfully defended her Masters thesis titled “Online Near-Real Time Open-Loop System Identification from Closed-Loop Flight Test Data“.

Cassie-Kay’s thesis investigated identifying linear dynamic models onboard a vehicle in near-real time with and without an active controller. This is performed for a small Unmanned Air System (UAS) utilizing low cost, commercial-off-the-shelf components. Bare airframe longitudinal, lateral/directional and combined longitudinal lateral/directional models of the test vehicle are generated both onboard the vehicle during flight and offline during post-processing. The Developmental Flight Test Instrumentation 2 (DFTI2), utilizing the Robot Operating System (ROS), is extended to compute system models onboard the vehicle from both open-loop and closed-loop data. Additionally, a controller is implemented into the system, external to the primary flight controller, to generate and record controller inputs for the closed-loop system. The Observer/Kalman filter Identification (OKID) algorithm is used to generate locally linear models of the flight vehicle. Models are generated independent of actuator dynamics by mapping deflection angle to measured servo potentiometer readings. Orthogonal Schroeder sine sweep excitations are utilized to reduce potential control coupling while also exciting multiple frequencies. Identified models are presented and evaluated. Offline analysis of closed-loop flight data provides insight into the controller utilized in flight. Results presented in the thesis show the extended system can generate models suitable for describing the dynamics of the vehicle operating both with and without a controller implemented.

This work is sponsored by the National Science Foundation (NSF)  Center for Autonomous Air Mobility and Sensing (CAAMS). Conference and journal papers are being written on this work. Cassie-Kay’s is the 60th graduate degree earned by a VSCL graduate student.

Filed Under: Defense, System Identification

VSCL Ph.D. Student Kameron Eves Receives Two Awards From The Center for the Integration of Research, Teaching, and Learning (CIRTL)

Posted on August 31, 2023 by Hannah Lehman

Ph.D. student Kameron Eves received two awards from the Center for the Integration of Research, Teaching, and Learning (CIRTL), a national organization supported by the National Science Foundation (NSF) with 41 member universities.  Eves received the CIRTL Scholar Certificate which recognizes students who have advanced and disseminated research about evidence-based teaching practices for diverse learners. Eves also received the Bednarz Award which annually recognizes a doctoral student for their superior quality evidence-based teaching research and for the depth of their involvement at CIRTL. He received these awards for his work in the Teaching-as-Research (TAR) CIRTL program which supports aspiring faculty who perform evidenced-based teaching research projects.

Eves credits this instruction and experience with preparing him well for his career faculty position.  “I’m honored to have been selected as the 2023 Texas A&M CIRTL Bednarz award recipient and I’m pleased to have also met the requirements for the CIRTL Scholar award. Participating in CIRTL programs throughout my graduate career significantly altered my perspective on education and the role of teachers. I’m particularly grateful for Dr. Valasek’s role as my advisor and exemplar in this endeavor”

Eves’s project investigated the effects of question phraseology on student participation. Specifically, he examined if lowering the social cost and providing a clear method of response affected the quantity of participation and how that participation varied across demographic groups. During his graduate career, Eves participated in several CIRTL programs including the TAR program and the Massive Open Online Course (MOOC).

Eves graduated from Texas A&M University in May 2023 and is currently an Assistant Professor of Electrical & Computer Engineering at Utah Tech University, St. George, UT.

Filed Under: Awards

Lehman, Eves, and Valasek Papers Accepted to 2024 AIAA SciTech Forum and Exposition, Orlando, FL, January, 2024

Posted on August 28, 2023 by Hannah Lehman

VSCL Ph.D. student Hannah Lehman, former Ph.D. student Kameron Eves, and VSCL Director John Valasek have had papers accepted to the 2024 AIAA SciTech Forum and Exposition, Orlando, FL, January, 2024.

John Valasek
Kameron Eves
Hannah Lehman

Machine Learning Across Different Levels of Auction Based Coordination Hierarchies (Lehman and Valasek)

Machine learning has long been discussed as a candidate for facilitating autonomous multiagent vehicle coordination. Many methods of autonomous multiagent coordination have been proposed, however few if any solutions take into account realistic communication challenges. By using machine learning on multiple levels, and a self organizing hierarchical system, an autonomous, pseudo decentralized, heterogeneous, system can dynamically complete tasks without being fully connected. This method will be investigated and demonstrated on a simple, proof of concept rotorcraft simulation.

This publication is part of VSCL’s ongoing work in the area of Tightly Integrated Navigation and Guidance for Multiple Autonomous Agents https://vscl.tamu.edu/research/tightly-integrated-navigation-and-guidance-for-multiple-autonomous-agents-2/

Inlet Unstart Prevention by Adaptive Regulation Using a Nonlinear Longitudinal Timescale Model (Eves and Valasek)

Inlet unstart on hypersonic aircraft causes a rapid and dangerous loss of thrust. Fortunately, proper control design can help prevent inlet unstart. This paper demonstrates how [K]control of Adaptive Multiple timescale Systems (KAMS) can effectively address this challenging problem. First, a multiple-timescale model of a hypersonic aircraft is developed to facilitate the control law design. Then, a KAMS controller is designed using Adaptive Nonlinear Dynamic Inversion to stabilize the reduced subsystems and Sequential Control is used to fuse the control signals for reduced subsystems. The closed-loop system is proven to be stable despite weak non-minimum phase effects. KAMS provides stability guarantees that are more rigorous than prior work and also provides insights into the system’s underlying physics. Numerical results presented in the paper show that KAMS can effectively prevent inlet unstart and mitigate uncertainty using angle-of-attack regulation.

This publication is part of VSCL’s ongoing work in the area of nonlinear multiple time-scale control https://vscl.tamu.edu/research/novel-multiple-time-scale-adaptive-control-for-uncertain-nonlinear-dynamical-systems/

Filed Under: Publications

VSCL Students Selected for Summer 2023 Internships

Posted on May 21, 2023 by Hannah Lehman

Many students of the Texas A&M Vehicle Systems & Control Laboratory have been selected for offsite internships for the Summer of 2023. These internships show VSCL student representation at a variety of companies and institutions across the United States. Students which have been selected for internships in the Summer of 2023 include:

VSCL Graduate Research Assistant and Ph.D Student Chris Leshikar has been selected for a Summer 2023 internship with the Gulfstream Aerospace Corporation this summer in Savannah, GA. Chris will be working in the Flight Dynamics group on system identification methods and analyses for jets going through the certification process.

 

 

 

 

 

VSCL Graduate Research Assistant and Ph.D Student Hannah Lehman has been selected for a Summer 2023 research internship at Sandia National Laboratory in Albuquerque, NM. Hannah has been working as a Year-Round Research & Development Intern since 2020, with a principal focus of applying machine learning to defense vehicles.

 

 

 

 

 

VSCL Graduate Research Assistant and MS student MD-Nazmus Sunbeam has been selected for a Summer 2023 internship with Starfish Space in Seattle, WA. Sunbeam will be working on computer vision / navigation DL algorithms for space vehicles.

 

 

 

 

 

 

VSCL Graduate Research Assistant and MS Student Cassie-Kay McQuinn has been selected for a Summer 2023 research internship at the Airforce Research Labatory at Wright-Patterson Air Force Base near Dayton, OH.

 

 

 

 

 

 

jillianVSCL Graduate Research Assistant Jillian Bennett has been selected for a Summer 2023 research internship with VSCL. Jillian will be starting the adaptive time scale control project.

 

 

 

 

VSCL Undergraduate Research Assistant Seth Johnson has been selected for a Summer 2023 internship with VectorNav in Dallas, TX. Seth will be working as a Nevigation Engineer.

VSCL Undergraduate Research Assistant Yuki Janvier has been selected for a Summer 2023 internship with Atlassian in Austin, TX. Yuki will be working as a Software Engineering Intern.

VSCL Undergraduate Research Assistant Katelyn Lancaster has been selected for a Summer 2023 internship with Lockheed Martin in Marietta, GA. Katelyn will be doing Test and Evaluation engineering.

VSCL Undergraduate Research Assistant Carla Zaramella has been selected for a Summer 2023 internship with Raytheon in Tewsbury, MA. Carla will be working as a “Whole Life Program – Systems Engineering Intern” in RTX Missiles and Defense. She will be working with a team to ensure that hardware and systems are effective, reliable and maintainable, the goal of WLE.

VSCL Undergraduate Research Assistant Laura Escamilla has been selected for a Summer 2023 research internship with VSCL. Laura will be working with a Vector nav calibration for the anaconda, and will support the Robust Threat Detection project.

VSCL Undergraduate Research Assistant Abby Andrews has been selected for a Summer 2023 research internship with Impact Systems Engineering in Temple, TX. Abby will be working with 4200 and 5200 3D printers, with her role primarily focusing on de-powering parts and structuring builds units.

VSCL Undergraduate Research Assistant Payton Clem has been selected for a Summer 2023 research internship with VSCL. Payton will be working with systems architecture on the Robust Threat Detection project.

Filed Under: Internships

VSCL Students Graduate with PhD, M.Eng., and B.S. Degrees

Posted on May 21, 2023 by Hannah Lehman

Esteban Gomez
Dr. Eves, Dr. Valasek, and Dr. Jares
Alexander Gross and Dr. Valasek

Dr. Valasek and graduates including Cameron Brooks
Dr. Valasek and graduates including Lauren Herrera and Jillian Bennett
Dr. Valasek and Connor Atkins

VSCL graduate student Dr. Kameron Eves has graduated with his Doctor of Philosophy on May 13th in Aerospace Engineering.

VSCL graduate student Dr. Garrett Jares has graduated with his Doctor of Philosophy on May 13th in Aerospace Engineering.

VSCL graduate student Esteban Gomez has graduated with his Master of Science on May 13th in Aerospace Engineering.

VSCL graduate student Connor Atkins has graduated with his Master of Science on May 13th in Aerospace Engineering.

VSCL undergraduate student Alexander Gross has graduated with his Bachelors on May 12th in Aerospace Engineering.

VSCL undergraduate student Cameron Brooks has graduated with his Bachelors on May 12th in Aerospace Engineering.

VSCL undergraduate student Lauren Herrera has graduated with her Bachelors on May 12th in Aerospace Engineering.

VSCL undergraduate student Jillian Bennett has graduated with her Bachelors on May 12th in Aerospace Engineering.

 

 

Filed Under: Alumni, Graduation

VSCL Hosts Dr. Dimitra Panagou

Posted on March 27, 2023 by Hannah Lehman

VSCL hosted Dr. Dimitra Panagou, Associate Professor with the Department of Robotics, and the Department of Aerospace Engineering Department, University of Michigan. Dr. Panagou met with Lab Director Dr. John Valasek and several VSCL Graduate Students. Dr. Panagou gave a presentation on Tunable Control Barrier Functions for Multi-Agent Safety Via Trust Adaptation and discussed UAS autonomy research and safe and resilient (secure) multi-agent systems.

Filed Under: Presentations

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