Jason Choi

Title
Associate Professor of Aerospace Engineering
Email
Department
Aerospace Engineering Department
College
College of Engineering

Office Hours

M, W 15:00 – 17:00, Th 09:00 – 12:00 & 14:00 - 16:00, or by appointment

Areas of Expertise

Rotorcraft Aeromechanics and Rotor Dynamics

Rotorcraft Performance and Conceptual Design

UAM (Urban Air Mobility) / Electric VTOL

Dynamics, Vibration, and Aeroelasticity

Composite Structure

Jason Choi

After earning his Ph.D. from the Georgia Institute of Technology, Dr. Choi spent more than 18 years in the rotorcraft industry. During this time, he worked on various projects at Bell Helicopter, focusing on both conventional and innovative VTOL vehicle development. These projects included the NEXUS eVTOL, APT logistics eUAS, Next Gen Advanced Tilt Rotor, as well as traditional helicopters and tilt rotors.
In early 2021, Dr. Choi moved to Overair/Hanwha Systems, where he took on a role in leading advancements in urban air mobility solutions. His experience goes beyond rotorcraft, including work in wind energy and automobiles.
Since the fall of 2023, Dr. Choi has been an Associate Professor at Embry-Riddle Aeronautical University. He's enthusiastic about sharing his industry knowledge with emerging engineers, helping them connect academic learning with real-world engineering practices.

  • Ph.D. - Doctor of Philosophy in Aerospace Engineering, Georgia Institute of Technology-Main Campus
  • EGR 310: Advanced Engineering Computat
  • ES 325: Measurements and Instr Lab
  • ME 400: Mechanical Vibrations


Journal Papers

1)  Park M., Choi J, Park S. : “Battery Sensitivity Analysis on Initial Sizing of eVTOL Aircraft”, Journal of the Korean Society for Aeronautical & Space Sciences, vol. 50, issue 12, 2022, pp. 819-828

2)  Choi J. and Ruzzene M. : “Stability Analysis of Super-Cavitating Underwater Vehicles with Adaptive Cavitator”, International Journal of Mechanical Sciences, vol  48, 2006

3)  Laulusa, A., Bauchau, O.A., Choi, J.Y., Tan, V. and Li, L.: “Evaluation of some Shear Deformable Shell Elements.” International Journal of Solids and Structures, vol 43, 2006, pp 5033–5054

4)  Choi J. and Ruzzene M. : “Dynamic Analysis of Super-Cavitating Vehicles Using Modal Based Elements”, SIMULATION: Transactions of the Society for Modeling and Simulation International, vol 80 (11), 2004, pp 619-633

5)  Bauchau O. A. and Choi J. : “The Vector Parameterization in Motion”, Nonlinear Dynamics, vol 33, 2003, pp165-188

6)  Bauchau O. A., Choi J. and Bottasso C.L.: “Time Integrators for Shells in Multibody dynamics” ,Computers and Structures, vol 80, 2002, pp871-889

7)  Bottasso C. L., Bauchau O. A. and Choi J.: "An Energy Decaying Scheme for Nonlinear Dynamics of Shells", Computer Methods in Applied Mechanics and Engineering, vol 191, n 27-28, Apr 26, 2002, p 3099-3121

8)  Bauchau O. A., Choi J. and Bottasso C.L.: "On the Modeling of Shells in Multibody Dynamics", Multibody System Dynamics, vol 8, no 4, 2002, pp459-489

Conference Papers

9)  Choi J., Corrigan J., Summers M. : "Validation of CHARM Wake Methodology for Computation of Loads And Vibrations", AHS Forum 65, Grapevine, TX, May 27, 2009

10) Choi J.Y., and Ruzzene M.: "Stability of Supercavitating Vehicles with Variable Cavitator" Proceedings of the ACTIVE04, Williamsburg VA, September 20-22, 2004.

11) Hong C.H., Cheplak M., Choi J.Y., and Mavris D.N.: "Flexible Multi-Body Design of a Morphing UCAV." Proceedings of the AIAA 3rd "Unmanned Unlimited" Technical Conference, Chicago IL, September 20-23, 2004.

12) Choi J.Y., Ruzzene M. and Bauchau O.A.: "Dynamic Analysis of Flexible Supercavitating Vehicles Using Modal Based Elements." Proceedings of the International Mechanical Engineering Congress, Washington DC, November 15 - 21, 2003.

13) Bauchau O.A. and Choi J.Y.: "Dynamic Simulation of Cables and Membranes." Proceedings of the Fifth World Congress on Computational Mechanics. Vienna, Austria, July 7-12, 2002. pp 262 - 270.

14) Bauchau O.A., Choi J.Y. and Bottasso C.L.: "An Energy Decaying Scheme for Nonlinear Dynamics of   Shells." Proceeding of the Second European Conference on Computational Mechanics, Cracow, Poland, June 26-29, 2001. Volume 1, pp 44-45.

15) Bauchau O.A., Choi J.Y. and Bottasso C.L.: "On the Modeling of Shells in Multibody Dynamic." Proceedings of the 18th Biennal Conference on Mechanical Vibration and Noise, Pittsburgh PA, Sep. 9-12, 2001. Paper DETC2001/VIB-21339.

16) Kim J. and Choi J.: "Vibration and Sound Field of Ultrasonic Cleaners", International Conference on Structural Dynamics, Vibration, Noise and Control, 1995

17) Kim J. and Choi J.: "Acoustic Characteristics of the BAZOOKA Speaker", Inter-Noise95, 1995

18) Kim J. and Choi J.: "A Study on Improving the Life and Performance of an Ultrasonic Cleaner by Vibration and Acoustic Analysis", Korea Society of Mechanical Engineers, 1995


Patents

Wind Turbine Related

1)  US-9039381           Wind turbine blade and method for manufacturing a wind turbine blade with vortex generators

2)  US-8123484           Torsional dynamic damper for a wind turbine and method of using same

Rotorcraft Related

1  )  US-11724800-B2  Vibration attenuator

2  )  US-11697491-B2  Electric reaction control system

3  )  US-11691723-B2  Rotor assembly with static mast and pivoting rotor hub

4  )  US-11685521-B2  Rotor hub vibration attenuator

5  )  US-11649043-B2  Tilted propellers for enhanced distributed propulsion control authority

6  )  US-11577826-B2  Vibration attenuator

7  )  US-11414183-B2  Compound helicopter having a tiltable jet engine

8  )  US-11267561-B2  Vibration attenuator

9  )  US-11214361-B2  Vibration attenuator

10)  US-11173521-B2  Vibration attenuator

11)  US-11148790-B2  Rotor hub vibration attenuator

12)  US-11136115-B2  Tilted propellers for enhanced distributed propulsion control authority

13)  US-11097836-B2  Vibration attenuation system for electric and hybrid electric vehicles

14)  US-11084575-B2  Rotor hub vibration attenuator

15)  US-10974822-B2  Anti-tail buffet system

16)  US-10960969-B2  Method of improving a stability speed of a tiltrotor aircraft

17)  US-10843788-B2  Damping structures for tiltrotor aircraft wings

18)  US-10829204-B2  Electric reaction control system

19)  US-10793254-B2  Soft-in-plane proprotor systems

20)  US-10654558-B2  Rotor hub with enforced collective coning

21)  US-10618646-B2  Rotor assembly having a ball joint for thrust vectoring capabilities

22)  US-10569870-B2  Proprotor systems for tiltrotor aircraft

23)  US-10562617-B2  Rotor hub vibration attenuator

24)  US-10518868-B2  Soft-in-plane proprotor systems

25)  US-10518867-B2  Loop yoke for proprotor systems

26)  US-10472057-B2  Rotor assembly with high lock-number blades

27)  US-10457380-B2  Articulated rotor systems with pitch independent damping

28)  US-10392098-B2  High stiffness hub assemblies for rotor systems

29)  US-10384776-B2  Tiltrotor aircraft having vertical lift and hover augmentation

30)  US-10232932-B2  High stiffness hub assembly for proprotor systems

Bell Helicopter – 15 yrs

VESTAS Wind Energy – 2 yrs

Samsung/Renault – 6 years

Overair/Hanwha - 2 yrs

Georgia Tech – 2 yrs (Research Faculty)