Geogria Institute of Technology

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Faculty Profile

J. V. R. Prasad

J. V. R. Prasad

Professor

Office: Knight 421-A
Phone: 404.894.3043
Fax: 404.894-2760
jvr.prasad@aerospace.gatech.edu
http://www.ae.gatech.edu/~jprasad/

Education

  • B.S., Aeronautical Engineering, 1974, Indian Institute of Technology
  • M.S., Aeronautical Engineering, 1982, Indian Institute of Technology
  • M.S., Aerospace Engineering, 1983, Georgia Institute of Technology
  • Ph.D., Aerospace Engineering, 1985, Georgia Institute of Technology

Biography

Dr. J.V.R. Prasad is a professor in the School of Aerospace Engineering, working in the area of flight mechanics and control. He is currently a co-principal investigator in the US Army sponsored Vertical Lift Rotorcraft Center of Excellence (VLRCOE) program and the General Electric Aircraft Engines University Strategic Alliance (GEAE-USA) program at Georgia Tech. He has extensive research and design experience in rotorcraft modeling and control, propulsion system modeling and control, atmospheric turbulence modeling, simulation, system identification, linear and nonlinear control theory applications, and neural networks and fuzzy logic control. Dr. Prasad published parts of four books, forty five refereed journal papers, one hundred and ninety conference papers, and seventy research project reports. He has five invention disclosures and four patents to his credit. He served as the chairman of the technical committee on handling qualities of the American Helicopter Society during 1994-96 and as a member of the AIAA Flight Mechanics Technical Committee during 1998-2001. He also served as the as the chairman of the technical committee on UAVs of the American Helicopter Society during 2007-09. He has been a member of the Editorial Board for the International Journal on Mathematical Modeling and Simulation and an Associate Editor of the Journal of the American Helicopter Society. He is an Associate Fellow of AIAA and a member of the AHS.

Research

Sensing and active control of aerospace systems, including:

  • Active control of gas turbine engines for enhanced operability and performance
  • Methods for envelope protection in aerospace systems
  • Technologies for rotorcraft autonomous flight
  • Flight mechanics and control oriented modeling of rotorcraft on-blade control concepts
  • Reduced order modeling for rotorcraft/ship dynamic interface simulations

Selected Publications

  • Prasad, J.V.R., “Development and Demonstration of a Stability Management System for Gas Turbine Engines,” (with D. Christensen, P. Cantin, D. Gutz, P.N. Szucs, A.R. Wadia, J. Armor, M. Dhingra, and Y. Neumeier) ASME Journal of Turbomachinery, Vol. 130, July 2008.
  • “Prediction of Vortex Ring State Boundary of a Helicopter in Descent Flight by Nonlinear Flight Dynamic Simulation,” (with P-M. Bassett, C. Chen and S. Kolb) Journal of the American helicopter Society, Vol. 53, No. 2, April 2008, pp. 139-151.
  • “Envelope Protection for Unmanned Aerial Vehicles,” (with I. Yavrucuk and S. Unnikrishnan) Journal of Guidance, Control and Dynamics, Vol. 32, No. 1, January – February 2009, pp. 248 - 261.
  • “Benefits of Active Compressor Stability Management on Turbofan Engine Operability,” (with J. Liu and M. Dhingra) ASME Journal of Engineering for Gas Turbines and Power, Vol. 131, July 2009, Paper No. 041601.
  • “Minimum-time Approach to Obstacle Avoidance Constrained by Envelope Protection for Autonomous UAVs,” (with J. Moon) Proc. of the 65th Annual Forum of the American Helicopter Society, Grapevine, TX, May 27 – 29, 2009.
  • “Analysis of Real Time Rotor Stall Detection Methods,” (with I. Grill, I., S-J. Kim, S-J. and G. Vachtsevanos) Proc. of the 65th Annual Forum of the American Helicopter Society, Grapevine, TX, May 27 – 29, 2009.
  • “Linear Time Invariant Models for Integrated Flight and Rotor Control,” (E. Olcer, E., L.N. Sankar, L.N. and C.) Proc. of the 35th European Rotorcraft Forum, Hamburg, Germany, September 22-25, 2009.

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    Prof. Mitchell Walker in the High-Power Electric Propulsion Lab

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