Optimum Pulse Control of Flexible Structures

[+] Author and Article Information
S. F. Masri, G. A. Bekey

School of Engineering, University of Southern California, Los Angeles, Calif. 90007

T. K. Caughey

Division of Engineering and Applied Science, California Institute of Technology, Pasadena, Calif. 91109

J. Appl. Mech 48(3), 619-626 (Sep 01, 1981) (8 pages) doi:10.1115/1.3157684 History: Received August 01, 1980; Revised February 01, 1981; Online July 21, 2009


A simple yet efficient active control method is presented for reducing the oscillations of distributed parameter systems subjected to arbitrary dynamic environments. Following determination that some specified response threshold has been exceeded, an open-loop control pulse is applied. The optimum pulse characteristics are determined analytically so as to minimize a non-negative cost function related to the structure energy. The proposed control method is shown to be reliable in consistently mitigating the response of realistic multidegree-of-freedom systems, whether linear or nonlinear, subject to arbitrary stochastic or deterministic excitation.

Copyright © 1981 by ASME
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