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RESEARCH PAPERS: Vibration and Sound

Analytical Results for Optimum Actively Damped Suspensions Under Random Excitation

[+] Author and Article Information
D. Karnopp

Department of Mechanical Engineering, University of California, Davis, CA 95616

J. Vib., Acoust., Stress, and Reliab 111(3), 278-282 (Jul 01, 1989) (5 pages) doi:10.1115/1.3269853 History: Received November 01, 1987; Revised April 01, 1988; Online November 23, 2009

Abstract

A single degree-of-freedom system under white noise base velocity excitation is optimized using analytical expressions for mean square response quantities. In addition to a parallel spring and passive damper combination, a force generator is assumed to provide an active damping force proportional to the isolated mass absolute velocity. Several optimal and sub-optimal boundary curves are found and the corresponding optimal parameters are also presented. The results show trends which may be useful in designing variable parameter and semiactive vehicle suspensions.

Copyright © 1989 by ASME
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