B.Tech., Aeronautical Engineering, Indian Institute of Technology, Madras, 1974

J.V.R. Prasad

Professor of Aerospace Engineering

Degrees

B.Tech., Aeronautical Engineering, Indian Institute of Technology, Madras, 1974.

M.S., Aeronautical Engineering , Indian Institute of Technology, Madras,1982.

M.S., Aerospace Engineering, Georgia Institute of Technology, Atlanta, 1983.

Ph.D., Aerospace Engineering, Georgia Institute of Technology, Atlanta, 1985.

Georgia Tech Experience

Research Assistant, Aerospace Engineering,1982 – 1985.

Post-Doctoral Fellow, Aerospace Engineering, 1985 – 1986.

Research Engineer II, Aerospace Engineering, 1987.

Assistant Professor, Aerospace Engineering, 1987 – 1993.

Associate Professor, Aerospace Engineering, 1993-1998.

Professor, Aerospace Engineering, 1998-present.

Other Professional Positions and Consulting Experience

Design Trainee, Hindustan Aeronautics Limited, Bangalore, India, 1974 – 1975.

Aeronautical Engineer, Hindustan Aeronautics Limited, Bangalore, India, 1975 – 1980.

Deputy Design Engineer, Hindustan Aeronautics Limited, Bangalore, India, 1980 – 1982.

Consultant - McDonnell Douglas Helicopter Company, 1985, 1990; McDonnell Douglas Astronautics Company, 1986; Lockheed-Georgia Aircraft Company, 1987; Autokinetics, Ltd., Atlanta, GA, 1988;NAS, Inc., Huntsville, AL, 1989; SCI, Huntsville, AL, 1990; Guided Systems Technology, Atlanta, GA, 1991-1992; Grumman Aerospace, 1992; US Army Aviation Systems Command, St. Louis, MO, 1993; NATO Consultant on Helicopter Stability and Control, TAI, 2001, 2003 and 2004.

Selected Patents and Invention Disclosures 2002-2007

Calise, A.J., Prasad, J.V.R., Horn, J., “Method and Algorithms for Neural Network Based Automatic Limit Prediction and Avoidance,” US Patent No. US 6332105B1, December 2001.

Bharadwaj, S., Venkateswaran, N., Yeung, C-H., Schirle, S., Prasad, J.V.R., “Method and Apparatus for Continuous Prediction, Monitoring and Control of Compressor Health via Detection of Precursors to Rotating Stall and Surge,” U.S. Patent 6532433, March 11, 2003. (Also, European Patent No. 02252671.9)

Yeung, C-H., Schirle, S. and Prasad, J.V.R., “Method and apparatus for compressor control and operation in industrial gas turbines using stall precursors,” US Patent No. 6506010, January 14, 2003.

Prasad, J.V.R., Neumeier, Y., Krichene, A. and Dhingra, M., “Method and Apparatus for Active Control of Surge in Compressors,” US Patent No. 6793455, September 21, 2004.

G. Jeram, Prasad, J.V.R., “Limit Protection Distributor,” Invention Disclosure (GTRC ID 3390), Feb17, 2005.

Selected Publications: 2002-2007

Horn, J., Calise, A.J. and Prasad, J.V.R., “Flight Envelope Limit Detection and Avoidance,” Journal of the American Helicopter Society, Vol. 47, No. 4, pp. 253-262, October 2002.

Kim, N., Calise, A.J., Hovakimyan, N., Prasad, J.V.R. and Corban, E., “Adaptive Output Feedback for High Bandwidth Flight Control,” Journal of Guidance, Control and Dynamics, Vol. 25, No. 6, pp. 993-1002, Nov-Dec, 2002.

Iboshi, N., Iota, N., Hayata, Y., Prasad, J.V.R., “Hovering Performance of a Rotor in an Inclined and Partial Ground Effect,” Journal of the Japan Society for Aeronautical and Space Sciences, Vol. 51, pp.433-440, 2003.

Iboshi, N., Itoga, N., Maeda, K., Prasad, J.V.R., “Hovering Performance of a Rotor in a Dynamic Ground Effect,” Journal of the Japan Society for Aeronautical and Space Sciences, Vol. 52, pp. 302-308, 2004.

Zhao, J., Prasad, J.V.R. and Peters, D. A., “Rotor Dynamic Wake Distortion Model for Helicopter Maneuvering Flight,” Journal of the American Helicopter Society, Vol. 49(4), October, 2004. pp 414-424.

Jeram, G. and Prasad, J.V.R., “Open Architecture for Helicopter Tactile Cueing Systems,” Journal of the American Helicopter Society, Vol. 50, No. 3, July 2005, pp. 238-248.

Shelton, A., Tomar, A., Prasad, J.V.R., Smith, M.J. and Komerath, N., “Active Multiple Winglets for Improved Unmanned Aerial Vehicle Performance, “Journal of Aircraft, Vol. 43, No. 1, January-February, 2006, pp. 110-116.

Sahani, N.A., Horn, J.F., Jeram, G.J. and Prasad, J.V.R. “Hub Moment Limit Protection using Neural Network prediction,” Journal of the American Helicopter Society, Vol. 51, No. 4, October 2006, pp. 331-340.

Dhingra, M., Neumeier, Y., Prasad, J.V.R., Breeze-Stringfellow, A, Shin, H-W., Szucs, P.N., “A Stochastic Model for a Compressor Stability Measure,” ASME Journal of Engineering for Gas Turbines and Power, Vol. 129 (3), 2007, pp. 730-737.

Chen, C. and Prasad, J.V.R., “Simplified Rotor Inflow Model for Descent Flight, “Journal of Aircraft, Vol. 44, No. 3, May-June 2007, pp.936-944.

Selected Presentations and Keynote Addresses: 2002-2007

Prasad, J.V.R., Zhao, J. and Peters, D.A., “Simplified Dynamic Wake Distortion Model for Helicopter Transitional Flight,” Proc. of the AIAA Atmospheric Flight Mechanics Conference, Monterey, CA, August 5 -8, 2002, AIAA-2002-4400.

Prasad, J.V.R., Yavrucuk, I. and Unnikrishnan, S., “Adaptive Limit Detection and Avoidance for Rotorcraft,” Proc. of the 28th European Rotorcraft Forum, Bristol, UK, September 17-20, 2002.

Jeram, G. and Prasad, J.V.R., “Fuzzy Logic Detector for Aircraft Coupling and Piloted Induced Oscillation,” Proc. of the 59th American Helicopter Society Annual Forum, Phoenix, AZ, May 6-8, 2003.

Prasad, J.V.R., Unnikrishnan, S. and Yavrucuk, I., “Envelope Protection Systems for UAVs,” Proc. of the 4th Australian Pacific Vertiflite Conference on Helicopter Technology, Melbourne, Australia, July 21-23, 2003.

Zhao, J., Prasad, J.V.R. and Peters, D.A., “Validation of a Rotor Dynamic Wake Distortion Model for Maneuvering Flight Simulation,” Proc. of the 60thAmerica Helicopter Society Annual Forum, Baltimore, MD, June 7-10, 2004.

Jeram, G. and Prasad, J.V.R., “Open Platform for Limit Display, Carefree Maneuver and Limit Protection,” Proc. of the 30th European Rotorcraft Forum, Marseille, France, September 14-16, 2004.

Chen, C. and Prasad, J.V.R., “Ring Vortex Model for Helicopter Descent Flight,” Proc. of the 61st American Helicopter Society Annual Forum, Grapevine, TX, June 1-3, 2005.

Dhingra, M., Armor, J., Neumeier, Y. and Prasad, J.V.R., “Compressor Surge: A Limit Detection and Avoidance Problem,” Proc. of the 2005 AIAA Guidance, Navigation and Control Conference, San Francisco, CA, August 15-18, 2005, Paper No. AIAA-2005-6449.

Prasad, J.V.R., Zhao, J. and Shanthakumaran, P., “Pilot-in-the-Loop Simulation Evaluations of a Dynamic Wake Distortion Model,” Proc. of the 2006 AHS Forum, Phoenix, AZ, May 9-11, 2006.

Prasad, J.V.R. and Chen, C., “A Reduced Order Inflow Model for a Helicopter Rotor in Descent Flight including the Vortex Ring State,” Proc. of the 2006 Heli Japan, Nagoya, Japan, November 15-17, 2006.

Prasad, J.V.R., Dhingra, M. and Neumeier, Y., “Turboshaft Engine Operability Enhancement via an Active Surge margin Detection Scheme,” Proc. ofthe 2007 AHS Forum, Virginia Beach, VA, May 1 – 3, 2007.

Prasad, J.V.R., Moon, J. and Kim, C-J., “Obstacle Avoidance with Envelop Protection for Autonomous UAVs,” Proc. of the International Forum on Rotorcraft Multidisciplinary Technology, Seoul, Korea, Oct. 15-16, 2007.

Professional Service and Development Activities: 2002--2007

American Helicopter Society, Member, 1987 - present.

American Institute of Aeronautics and Astronautics, Member (1988-’92), Senior member (1992-’99), Associate Fellow, 1999 – present.

Editorial Board for the International Journal of Mathematical Modeling of Systems, Member, 1994-present.

Journal of the American Helicopter Society, Associate Editor, 2003-present

AHS International Technical Specialists' Meeting on Advanced Rotorcraft Technology, Japan, Co-Technical Chair, 2006.

American Helicopter Society UAV Technical Committee, Member (2004 – present), Chair (2007-present)

Institutional Service and Development Activities: 2002-2007

AE Academic Advisory Council, Member, 2000 – present.

AE Flight Mechanics and Control Committee, Chair, 2001 – present.

AE Reappointment, Tenure and Promotion Committee, Member, 2001 – present.

Chair of the AE Advisory Committee (elected), 2001 – 2003.

Member of the College of Engineering RPT Committee (Associate and Full Professor), 2001 – 2003.

Member of AE Aeroelasticity and Structural Dynamics Committee, 2001-2007.

Member of AE Design & Optimization Committee, 2001-2007.

Member of AE Computing Facilities & Operation, 2001-present.

Selected Honors and Awards 2002-2007

Advisor of the student that has won the national Lichten competition, 2002.

Best paper of the Session’ award at the AHS Forum, 2002.

Advisor of the conference best student paper award, AIAA Atmospheric Flight Mechanics Conference, 2002.

Best paper of the session on Uninhabited VTOL Aircraft/Rotorcraft, 59th AHS Forum, 2003

Excellence in Mentoring- NASA Sharp program, August 2004.

“2006 ASME Conference Best paper Award” from the ASME Instrumentation and Control Committee, 2007.