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TECHNICAL BRIEFS

Optimal Design of Vibration Absorber Systems Supported by Elastic Base

[+] Author and Article Information
H. Ashrafiuon

Department of Mechanical Engineering, Villanova University, Villanova, Pa 19085

J. Vib. Acoust 114(2), 280-283 (Apr 01, 1992) (4 pages) doi:10.1115/1.2930258 History: Received January 01, 1991; Revised August 01, 1991; Online June 17, 2008

Abstract

This paper presents the effect of foundation flexibility on the optimum design of vibration absorbers. Flexibility of the base is incorporated into the absorber system equations of motion through an equivalent damping ratio and stiffness value in the direction of motion at the connection point. The optimum values of the uncoupled natural frequency and damping ratio of the absorber are determined over a range of excitation frequencies and the primary system damping ratio. Optimal design parameters are computed and compared for the rigid, and flexible models of the base as well as different levels of base flexibility.

Copyright © 1992 by The American Society of Mechanical Engineers
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