Journal Papers

  1. Prasad, J.V.R. and Pierce, G.A., “Nonlinear Deformation of Rotating Beams – An Alternate Method of Formulation,” Journal of the American Helicopter Society, Vol. 30, No. 2, pp. 68-70, April 1985.
  2. Hodges, D.H., Peters, D.A., Pierce, G.A., and Prasad, J.V.R., “Comment on ‘Nonlinear Deformation of Rotating Beams – An Alternate Method of Formulation,'” Journal of the American Helicopter Society, Vol. 31, No. 3, pp. 70-71, July 1986.
  3. Calise, A.J. and J.V.R. Prasad, “Pulse Motor Control for Maximizing Average Velocity,” Journal of Guidance, Control, and Dynamics, Vol. 12, No. 2, pp. 169-174, March-April 1989.
  4. Calise, A.J. and Prasad, J.V.R. “Fixed-Order Compensator Design Based on Frequency Shaped Cost Functionals,” Journal of Guidance, Control, and  Dynamics, 12, No. 3, pp. 429-431, May-June 1989.
  5. Calise, A.J. and Prasad, J.V.R., “An Approximate Loop Transfer Recovery Method for Designing Fixed-Order Compensators.” Journal of Guidance, Control, and Dynamics.Vol. 13, No. 2, pp. 297-302, March-April 1990.
  6. Calise, A.J., Prasad, J.V.R., and Siciliano, B., “Design of Optimal Output Feedback Compensators in Two-Time Scale Systems,” IEEE Transactions on Automatic Control, Vol. 35, No. 4, pp. 488-492, April 1990.
  7. Prasad, J.V.R., Calise, A.J. and Byrns, E.V., Jr., “Active Vibration Control using Fixed Order Dynamic Compensation with Frequency Shaped Cost Functionals,” IEEE Control Systems, 11, No. 3, pp. 71-78, April 1991.
  8. Mittal, M., Prasad, J.V.R. and Schrage, D.P., “Nonlinear Adaptive Control of a Twin Lift Helicopter System,” IEEE Control Systems, 11, No. 3, pp. 39-45, April 1991.
  9. Prasad, J.V.R., Mittal, M. and Schrage, D.P., “Control of a Twin Lift Helicopter System using Nonlinear State Feedback,” Journal of the American Helicopter Society, Vol. 36, No. 4,  57-65, 1991.
  10. Menon, P.K.A., Prasad, J.V.R. and Schrage, D.P., “Nonlinear Control of a Twin-Lift Helicopter System,” Journal of Guidance, Control, and Dynamics, 1287-12993, Jan-Feb., 1992. (Controller design and simulation)
  11. Siciliano, B., Prasad, J.V.R. and Calise, A.J., and, “Two-Time Scale Stabilization of a Flexible Arm with Output Feedback,” ASME Journal of Dynamic Systems, Measurement, and Control, Vol. 114, pp. 70-77, March 1992.
  12. Prasad, J.V.R., Mittal, M., and Schrage, D.P., “Comparison of Stability and Control Characteristics of Two Twin-Lift Helicopter Configurations,” Nonlinear Dynamics Journal, Vol. 3, pp. 199-223, 1992.
  13. Costello, M., Prasad, J.V.R., Schrage, D.P. and Gaonkar, G.H., ” Toward a Unified Theory of Modeling Atmospheric Turbulence Experienced by Helicopter Rotor Blades,” Journal of the American Helicopter Society, Vol. 37, No.2, pp. 71-75, April 1992.
  14. George, V.V., Gaonkar, G.H., Prasad, J.V.R. and Schrage, D.P., “On the Adequacy of Modeling Turbulence and Related Effects on Helicopter Response,” AIAA Journal, Vol. 30, No. 6, pp. 1468-1479, June 1992.
  15. Prasad, J.V.R. and Hanagud, S.V., “Vibration Control of a Smart Structure using Fixed Order Dynamic Compensation,” Journal for Intelligent Material Systems and Structures, Vol. 3, No. 3, pp. 501-518, July 1992.
  16. Mittal, M. and Prasad, J.V.R., “Three Dimensional Modeling and Control of a Twin-Lift Helicopter System,” Journal of Guidance, Control and Dynamics, Vol 16, No.1, pp. 86-95, January 1993.
  17. Riaz, J., Prasad, J.V.R., Schrage, D.P., Gaonkar, G.H., “Atmospheric Turbulence Simulation for Rotorcraft Applications,” Journal of the American Helicopter Society, Vol. 38, No.1, pp. 84-88, January 1993.
  18. Prasad, J.V.R. and Lipp, A., “Synthesis of a Helicopter Nonlinear Controller using Approximate Model Inversion,” International Journal on Mathematical and Computer Modeling, Vol. 18, No. 3/4, pp. 89-100, 1993.
  19. Dang, Y.Y, Gaonkar, G.H. and Prasad, J.V.R., “Parallel Methods for Turbulence Simulation and Helicopter-Response Prediction,” Journal of the American Helicopter Society, Vol. 41, No. 3, July 1996.
  20. Leitner, J., Calise, A.J. and Prasad, J.V.R., “Analysis of Adaptive Neural Networks for Helicopter Flight Control,” Journal of Guidance, Control and Dynamics, Vol. 20, No. 5, pp. 972-979,
  21. Vachtsevanos, G., Kim, W., Al-Hassan, S., Rufus, F., Simon, M., Schrage, D. and Prasad, J.V.R., “Mission Planning and Flight Control: Meeting the Challenge with Intelligent Techniques,” Journal of Advanced Computational Intelligence, Vol. I, No. I, pp. 62-70, October 1997.
  22. Rivera, C. and Prasad, J.V.R., “Identification of a Nonlinear Compressor Model,” Journal of Mathematics and Computers in Simulation, Vol. 46, pp. 585 – 592, April 1998.
  23. Markopoulos, N., Neumeier, Y., Prasad, J.V.R. and Zinn, B.T., “Linear Versus Quadratic Amplitude Feedback in Active Control of Compressor Rotating Stall,” Journal of Propulsion and Power, Vol. 16, No. 6, November, 2000, pp. 1164-1173.
  24. Itoga, N., Nagashima, T., Yoshizawa, Y. and Prasad, J.V.R., “Numerical Method for Predicting IGE Hover Performance of a Lifting Rotor,” Transactions of the Japan Society for Aeronautical and Space Sciences, Vol. 43, No. 141, November 2000, pp. 122-129.
  25. Horn, J., Calise, A.J. and Prasad, J.V.R., “Development of Envelope Protection Systems for Rotorcraft,” Journal of the American Helicopter Society, Vol. 46, No. 1, pp. 23 – 31, January 2001.
  26. Krothapalli, K., Prasad, J.V.R. and Peters, D.A., “Rotorcraft Inflow Modeling For Maneuvering Flight,” Journal of the American Helicopter Society, Vol. 46, No. 2, pp. 129 – 139, April 2001.
  27. Wills, L., Kannan, S., Sander, S., Gules, M., Heck, B., Prasad, J.V.R., Schrage, D.P. and Vachtsevanos, G., “An Open Software Infrastructure for Reconfigurable Control Systems,” IEEE Control System Magazine, Vol. 21, No. 3, June 2001, pp.49-64.
  28. Iboshi, N., Itoga, N., Nagashima, T., Schrage, D.P., Prasad, J.V.R., “Ground Effect and Blade Flapping Motion of a Rotor Hovering above Finite Inclined Ground Plane,” Journal of the Japan Society for Aeronautical and Space Sciences, Vol. 50, pp. 264-271, 2002.
  29. 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.
  30. 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, November-December, 2002.
  31. Iboshi, N., Itoga, 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.
  32. 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.
  33. 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, 49(4), October, 2004. pp 414-424.
  34. 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.
  35. 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.
  36. 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.
  37. Christensen, D., Cantin, P., Gutz, D., Szucs, P.N., Wadia, R., Armor, J.,  Dhingra, M., Neumeier, Y., Prasad, J.V.R., “Development and Demonstration of a Stability Management System for Gas Turbine Engines,” ASME Journal of Turbomachinery, Vol. 130, July 2008.
  38. 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.
  39. Chen, C. and Prasad, J.V.R., “Simplified Rotor Inflow Model for Descent Flight, “Journal of Aircraft, 44, No. 3, May-June 2007, pp.936-944.
  40. Bassett, P-M., Chen, C., Prasad, J.V.R. and Kolb, S., “Prediction of Vortex Ring State Boundary of a Helicopter in Descent Flight by Nonlinear Flight Dynamic Simulation,” Journal of the American helicopter Society, 53, No. 2, April 2008, pp. 139-151.
  41. Yavrucuk, Prasad, J.V.R. and Unnikrishnan, S. “Envelope Protection for Unmanned Aerial Vehicles,” Journal of Guidance, Control and Dynamics, Vol. 32, No. 1, January – February 2009, pp. 248 – 261.
  42. Bain, J.J., Sankar, L.N., Prasad, J.V.R., Bauchau, O.A., Peters, D.A. and He, C., “Computational Modeling of Variable-Droop Leading Edge in Forward Flight,” Journal of Aircraft, Vol. 46, No. 2, March-April 2009, pp. 617-626.
  43. Liu, Y., Dhingra, M. and Prasad, J.V.R., “Benefits of Active Compressor Stability Management on Turbofan Engine Operability,” ASME Journal of Engineering for Gas Turbines and Power, 131, July 2009, Paper No. 041601.
  44. White, M., Dhingra, M. and Prasad, J.V.R., “Experimental Analysis of a Waveguide Pressure Measuring System,” ASME Journal of Engineering for Gas Turbines and Power, November 2009, Paper No. 034906GTP.
  45. Bin, B-Y., Sankar, L.N., Rajmohan, N. And Prasad, J.V.R.,“Computational Investigation of the Effects of Gurney Flap on the Forward Flight Characteristics of Helicopter Rotors,” Journal of Aircraft, Vol. 46, No. 6, November – December 2009, pp. 1957 – 1964.
  46. Unnikrishnan, S., Prasad, J.V.R. and Yavrucuk, I., “Flight Evaluation of Reactionary Envelope Protection System for UAVs,” Journal of the American Helicopter Society, January 2011, pp. 012009-1 – 012009-1. (DOI: 10.4050/JAHS.56.012009)
  47. Moon, Jongki and Prasad, J.V.R., “Minimum Time Approach to Obstacle Avoidance Constrained by Envelope Protection for Autonomous UAVs,” IFAC Journal of Mechatronics, Vol. 21, No. 5, August 2011, pp. 861 – 875.
  48. Yavrucuk, I. and Prasad, J.V.R., “Online Dynamic Trim and Control Limit Estimations using Adaptive Neural Networks Models,” AIAA Journal of Guidance, Control and Dynamics, Vol. 35, No. 5, September – October, 2012, pp. 1647 – 1656.
  49. Kang, K. and Prasad, J.V.R., “Development and Flight Test Evaluations of an Autonomous Obstacle Avoidance System for a Rotary-wing UAV,” International Journal of Unmanned Systems, Vol. 1, No.1, July 2013, pp. 3-19.
  50. Zhou, M. and Prasad, J.V.R., “Transient Characteristics of a Fuel Cell Powered UAV Propulsion System,” Journal of Intelligent and Robotic Systems, Vol. 72, No. 1, October 2013, DOI 10.1007/s10846-013-9903-x.
  51. Chung, G., Prasad, J.V.R., Dhingra, M. and Meisner, R., “Real Time Analytical Linearization of a Turbofan Engine Model,” ASME Journal of Engineering for Gas Turbines and Power, Vol. 136, No. 1, January 2014, pp. 011201-1 to 011201-13.
  52. Zhou, M. and Prasad, J.V.R., “3-D Minimum Fuel Route Planning and Path Generation for a Fuel Cell Powered UAV Unmanned System,” International Journal of Unmanned Systems, Vol. 2, N0.1, January 2014, pp. 53-72.
  53. Iboshi, N., Itoga, N., Prasad, J.V.R. and Sankar, L. N., “Ground Effect of a Rotor Hovering above a Confined Area,” Frontiers in Aerospace Engineering (FAE), Vo. 3, No. 1, January 2014, DOI: 14355/fae.2014.0301.03.
  54. Huang, Jianzhe, Nowak, Morgan, Peters, David, and Prasad, J.V.R., “Converged Velocity Field for Rotors by a Blended Potential Flow Method,” The Journal of Aviation Technology, 1, No. 2, Nov. 2014.
  55. Lopez, M. and Prasad, J.V.R., “Linear Time Invariant Approximations of Linear Time Periodic Systems,” Accepted for publication in the Journal of American Helicopter Society, 2015
  56. Lopez, M. and Prasad, J.V.R., “ Modal Participation of Linear Time Periodic Systems using Linear Time Invariant Approximations,” Accepted for publication in the Journal of American Helicopter Society, 2015
  57. Kang, K. and Prasad, J.V.R., “Development of a Controller for Rotarywing UAV Carrying a Slung-Load for Autonomous Airborne Cargo Delivery,” Paper under revision for publication in the International Journal of Unmanned Systems, 2016.