1999 Technical Papers

Badre Alam, A., Wang, K. W. and Gandhi, F., “Optimization of Enhanced Active Constrained Layer (EACL) Treatment on Flex Beams for Helicopter Aeromechanical Stability Augmentation,” Journal of Smart Materials and Structures, Vol. 8, pp.182-196, 1999.

Heverly, D., Smith, E.C., Wang, K. W., “A Distributed Actuator Concept for Active Control of Helicopter Airframe Vibrations,” Proceedings of the 40th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA-99-1505, 1999.

Horn, J., Calise, A.C. and Prasad, J.V.R, “Development of Envelope Protection Systems for Rotorcraft,” American Helicopter Society 55th Annual Forum, Montreal, Canada, May 1999.

Horn, J., Calise, A.C. and Prasad, J.V.R, “Flight Envelope Limit Detection and Avoidance for Rotorcraft,” 25th European Rotorcraft Forum, Rome, Italy, September 1999.

Keller, J.A. and Smith, E.C., “Experimental and Theoretical Correlation of Helicopter Rotor Blade-Droop Stop Impacts,” Journal of Aircraft, Vol. 36, No. 2, pp. 443-450, March-April 1999.

Keller, J.A. and Smith, E.C., “Analysis and Control of the Transient Shipboard Engagement Behavior of Rotor Systems,” Proceeding of the American Helicopter Society 55th Annual Forum, Montreal, Quebec, May1999.

Khorrami, Mehdi R., Berkman, Mert E., Choudhari, Meelan, Singer, Bart A., Lockard, David P. and Brentner Kenneth S., “Unsteady Flow Computations of a Slat with a Blunt Trailing Edge,”Presented at the 5th AIAA/CEAS Aeroacoustics Conference, AIAA Paper 99-1805, Seattle, WA, May 10-12, 1999.

Lesieutre, G.A., “Effective Loss Factors for Switch-Shunted Piezoelectric Materials,” ARO Smart Structures Workshop, State College, PA, August 17, 1999.

Lesieutre, G.A., “New Ideas For Actuators,” DARPA Technical Interchange Meeting, NASA Langley Research Center, Hampton, VA, June 17-18, 1999.

Long, L. and Weiss, H., “The Velocity Dependence of Aerodynamic Drag: A Primer for Mathematicians,” American Mathematical Monthly, Vol. 106, No. 2, Feb. 1999, pp. 127-135.

McCormick, Barnes, “The Evolution of Technology and Education in Applied Aerodynamics,” American Institute of Aeronautics and Astronautics, Paper No. 99-0117, Reno, NV, January, 1999.

Ruhl, L.E., Smith, E.C., Lesieutre, G.A. and Brackbill, C.R., “Temperature-Dependent Behavior of Elastomeric Damper Materials,” proceedings of the 40th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, St. Louis, MO, April 12-15, 1999.

Singer, Bart A., Lockard, David P., Brentner, Kenneth S., Khorrami, Mehdi R., Berkman, Mert E. and Choudhari, Meelan, “Computational Aeroacoustics Analysis of Slat Trailing-Edge Flow,”Presented at the 5th AIAA/CEAS Aeroacoustics Conference, AIAA Paper 99-1802, Seattle, WA, May 10-12, 1999.

Tang, J. and Wang, K. W., “Vibration Control of Rotationally Periodic Structures Using Passive Piezoelectric Shunt Networks and Active Tuning,” ASME Journal of Vibration and Acoustics, 121(3), pp. 379-390, 1999.

Zhang, J., Smith, E., Wang, K. W., “Active-Passive Hybrid Vibration Control of Rotor Vibrations,” Proceedings of the 40th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA-99-1222, 1999.