Dr. Bradley S. Liebst, Professor of Aerospace Engineering
Department Head
Dr. Liebst received his Ph.D. from the Massachusetts Institute of Technology (Aeronautical Engineering) in 1981. He is currently Professor and Head of the Department of Aeronautics and Astronautics at the Air Force Institute of Technology. Prior to arriving at AFIT in 1989, Professor Liebst was 2 years with Contraves-Goerz Corporation as a Principal Engineer and was Assistant Professor of Aerospace Engineering for 6 years at the University of Minnesota where he was voted the 1987 Best Institute of Technology Professor. Dr. Liebst’s research interests include eigenstructure assignment control, stability and control of aerospace vehicles, aircraft handling qualities, and passive and active control of large flexible structures.
Education
BS, Aeronautical Engineering, Wichita State University, Wichita, KS, 1978
MS, Aeronautical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 1979
PhD, Aeronautical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 1981
Awards
Associate Fellow, American Institute of Aeronautics and Astronautics (AIAA)
Sigma Gamma Tau (Aeronautical Engineering)
Tau Beta Pi (Engineering)
1987 Best Institute of Technology Professor at University of Minnesota
2002 Best Paper of the Year from the Journal of Aerospace Engineering
2014 AFIT Leadership Excellence Award
2014 Affiliate Societies Council of Dayton Educator of the Year Award
Publications
1. B. S. Liebst, "A Pitch Control System for Large Scale Wind Turbines", AIAA Journal of Energy, Vol. 7, No. 2, pp. 182-192, May-June 1983.
2. W. L. Garrard and B. S. Liebst, "Active Flutter Suppression Using Eigenspace and Linear Quadratic Design Techniques", AIAA Journal of Guidance, Control, and Dynamics, Vol. 8, No. 3, pp. 304-311, May-June 1985.
3. B. S. Liebst, "A Pitch Control System for the KaMeWa Wind Turbine", ASME Journal of Dynamic Systems, Measurement, and Control, Vol. 107, pp. 47-52, March 1985.
4. B. S. Liebst, W. L. Garrard, and W. M. Adams, "Design of an Active Flutter Suppression System", AIAA Journal of Guidance, Control, and Dynamics, Vol. 9, No. 1, pp. 64-71, Jan-Feb 1986.
5. B. S. Liebst, "Wind Turbine Gust Load Alleviation Utilizing Curved Blades", AIAA Journal of Propulsion and Power, Vol. 2, No. 4, pp. 371-377, July-August 1986.
6. B. S. Liebst, "Accelerometer Placement in Active Flutter Suppression Systems", AIAA Journal of Guidance, Control, and Dynamics, Vol. 10, No. 5, pp. 441-446, September-October 1987.
7. B. S. Liebst, W. L. Garrard, and J. A. Farm, "Design of a Multivariable Flutter Suppression/Gust Load Alleviation System", AIAA Journal of Guidance, Control, and Dynamics, Vol. 11, No. 3, pp. 220-229, May-June 1988.
8. B. S. Liebst, W. L. Garrard, "Design of a Multivariable Helicopter Flight Control System for Handling Qualities Enhancement", Journal of the American Helicopter Society, Vol. 35, No. 4, pp. 23-30, October 1990.
9. M. Gaudreault, B. S. Liebst, R. Bagley, "Simultaneous Design of Active Vibration Control and Passive Viscous Damping", AIAA Journal of Guidance, Control, and Dynamics, Vol. 16, No. 4, pp. 654-661, July-August 1993.
10. B. S. Liebst and R. C. Nolan, “Method for the Prediction of the Onset of Wing Rock”, AIAA Journal of Aircraft, Vol. 31, No. 6, pp. 1419-1421, November-December, 1994.
11. B. S. Liebst and P. Torvik, "Asymptotic Approximations for Systems Incorporating Fractional Derivative Damping", ASME Journal of Dynamic Systems, Measurement, and Control, Vol. 118, No. 3, pp. 572-579, September, 1996.
12. R. Cobb, R. Canfield, and B. S. Liebst, “Finite Element Model Tuning Using the Automated Structural Optimization System Software”, AIAA Journal, Vol. 34, No. 2, February 1996, pp. 392-399.
13. B. S. Liebst and R. Cobb, “Structural Damage Identification Using Assigned Partial Eigenstructure”, AIAA Journal, Vol. 35, No. 1, January 1997, pp. 152-158.
14. B. S. Liebst and R. Cobb, “Sensor Placement and Structural Damage Identification From Minimal Sensor Information”, AIAA Journal, Vol. 35, No. 2, February 1997, pp. 369-374.
15. B. S. Liebst, “The Dynamics, Prediction, and Control of Wing Rock in High-Performance Aircraft”, Philosophical Transactions of the Royal Society, London, No. 356, 1998, pp. 2257-2267.
16. B. S. Liebst, Chapa, M., and Leggett, D., “Nonlinear Pre-Filter to Prevent Pilot-Induced Oscillations Due to Actuator Rate Limiting”, AIAA Journal of Guidance, Control and Dynamics, Vol. 25, No. 4, July-August 2002, pp. 740-747.
17. B. S. Liebst, Saad, A., and Gordnier, R. , “The Fluid Mechanism of Wing Rock for Configurations with Chine-Shaped Forebodies”, Journal of Aerospace Engineering, Vol. 15, No. 4, October 2002, pp. 125-135.
18. B. S. Liebst, Saad, A., “Computational Simulation of Wing Rock in Three Degrees-of-Freedom for a Generic Fighter With Chine-Shaped Forebody”, The Aeronautical Journal, Vol. 107, No. 1067, January 2003, pp. 49-56.
19. W. Baker and B. S. Liebst, “An Improved Asymptotic Approximation for Systems Incorporating Fractional Derivative Damping Models”, ASME Journal of Dynamic Systems, Measurement, and Control.