Howard C. Curtiss, Jr.

Howard C. Curtiss, Jr.
Professor
D224 Engineering Quadrangle
(609) 258-5134; Fax: 258-6109

Research related to modeling of the dynamic response and the control of rotorcraft. With the increasing use of fly-by-wire and fly-by-light control systems in rotorcraft it becomes important to improve the accuracy and bandwidth over which the dynamic mo dels of helicopters apply. Research is directed towards improving the fidelity of these mathematical models by using a combination of physical model refinements in conjunction with parameter identification methods based on flight test data. Recent resul ts have shown the importance of blade in-plane flexibility on the frequency response characteristics of articulated rotor helicopters.

References:

(with M. Pollack and F. Warburton) "A Simulation Study of Titltrotor Vertical Takeoff Procedures Using Conventional and Variable Diameter Rotor Systems." Paper No. 91 presented at the 17th European Rotorcraft Forum, Berlin, Germany, September 23-26, 199 1.

"On the Calculation of the Response of Helicopters to Control Inputs." Paper (No. F07) presented at the 18th European Rotorcraft Forum, Avignon, France, September 14-17, 1992.

(With S.W. Hong) "An Analytic Modeling and System Identification Study of Rotor/Fuselage Dynamics at Hover." Paper presented at the Piloting Vertical Flight Aircraft Conference on Flying Qualities and Human Factors, San Francisco, CA, January 20-22, 199 3.

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