RESEARCH PAPERS: Other Technical Papers

Vibration Isolation With Nonlinear Damping

[+] Author and Article Information
Jerome E. Ruzicka, Thomas F. Derby

Research and Development, Barry Controls, Division of Barry Wright Corporation, Watertown, Mass.

J. Eng. Ind 93(2), 627-635 (May 01, 1971) (9 pages) doi:10.1115/1.3427973 History: Received June 18, 1970; Online July 15, 2010


This paper discusses the performance characteristics of single degree-of-freedom vibration isolation systems in which the isolator damping force is proportional to the relative velocity across the isolator raised to an arbitrary power. The concept of equivalent viscous damping is employed to develop a general equation for the equivalent viscous damping ratio which is used to determine approximate isolation system response parameters. A range of isolator damping nonlinearity is studied by varying the relative velocity exponent between 0.5 and 5 for a fixed value of damping. Detailed results for parametric variations in damping are presented for specific values of the relative velocity exponent that correspond to Coulomb, viscous, quadratic, and cubic damping mechanisms.

Copyright © 1971 by ASME
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