- Associate Professor of Aerospace Engineering
- email@example.com Email
- Aerospace Engineering Department
- College of Engineering
Office HoursM, T, F 14:15 – 16:30, W 13:15 – 15:00, Th 16:45 – 17:30, 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
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
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
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
Wind Turbine Related
1) 9,039,381 Wind turbine blade and method for manufacturing a wind turbine blade with vortex generators
2) 8,123,484 Torsional dynamic damper for a wind turbine and method of using same
1) 11,414,183 Compound helicopter having a tiltable jet engine
2) 11,267,561 Vibration attenuator
3) 11,214,361 Vibration attenuator
4) 11,173,521 Vibration attenuator
5) 11,148,790 Rotor hub vibration attenuator
6) 11,136,115 Tilted propellers for enhanced distributed propulsion control authority
7) 11,097,836 Vibration attenuation system for electric and hybrid electric vehicles
8) 11,084,575 Rotor hub vibration attenuator
9) 10,974,822 Anti-tail buffet system
10) 10,960,969 Method of improving a stability speed of a tiltrotor aircraft
11) 10,843,788 Damping structures for tiltrotor aircraft wings
12) 10,829,204 Electric reaction control system
13) 10,793,254 Soft-in-plane proprotor systems
14) 10,654,558 Rotor hub with enforced collective coning
15) 10,618,646 Rotor assembly having a ball joint for thrust vectoring capabilities
16) 10,569,870 Proprotor systems for tiltrotor aircraft
17) 10,562,617 Rotor hub vibration attenuator
18) 10,518,868 Soft-in-plane proprotor systems
19) 10,518,867 Loop yoke for proprotor systems
20) 10,472,057 Rotor assembly with high lock-number blades
21) 10,457,380 Articulated rotor systems with pitch independent damping
22) 10,392,098 High stiffness hub assemblies for rotor systems
23) 10,384,776 Tiltrotor aircraft having vertical lift and hover augmentation
24) 10,232,932 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)