Random Excitation of a Nonlinear Vibration Neutralizer

[+] Author and Article Information
S. F. Masri, S. J. Stott

Civil Engineering Department, University of Southern California, Los Angeles, Calif.

J. Mech. Des 100(4), 681-689 (Oct 01, 1978) (9 pages) doi:10.1115/1.3453993 History: Received June 24, 1977; Online October 21, 2010


An approximate analytical solution is obtained for the stationary response of a highly nonlinear auxiliary mass damper (a dynamic vibration neutralizer with motion-limiting stops) attached to an oscillator that is subjected to random excitation. Experimental measurements with an electronic analog computer and numerically simulated solutions generated by means of a digital computer verify the findings. Results are given for the power spectral density and root-mean-squared level of the response. The effects of various damper parameters on the response of the primary system are determined. The nonlinear damper under consideration is shown to be significantly more effective than the conventional dynamic vibration neutralizer in controlling the response of systems subjected to random excitation.

Copyright © 1978 by ASME
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