Control of Reflector Vibrations in Large Spaceborne Antennas by Means of Movable Dampers

[+] Author and Article Information
P. K. C. Wang, J. C. Sarina

Department of System Science, University of California, Los Angeles, Calif. 90024

J. Appl. Mech 50(3), 669-673 (Sep 01, 1983) (5 pages) doi:10.1115/1.3167108 History: Received October 01, 1982; Revised March 01, 1983; Online July 21, 2009


A simple approach to the design of feedback controls for damping the vibrations in large spaceborne antennas with flexible dish reflectors is proposed. The feedback controls consist of movable velocity-feedback dampers whose positions are determined by minimizing the rate of change of total vibrational energy at any time. The performance of the proposed feedback controls is studied via computer simulations.

Copyright © 1983 by ASME
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