Time Varying Passive Vibration Absorption for Flexible Structures

[+] Author and Article Information
R. Quan, D. Stech

Aerospace Sciences Division, Frank J. Seiler Laboratory, U.S. Air Force Academy, CO 80840

J. Vib. Acoust 118(1), 36-40 (Jan 01, 1996) (5 pages) doi:10.1115/1.2889632 History: Received May 01, 1993; Online February 26, 2008


A time varying extension of the passive vibration absorber is described, which increases the effectiveness of a small number of passive vibration absorbers on large or changing flexible structures. Initially, the extended absorber is targeted on a subset of the modes of the flexible structure. A stable switching scheme is described, which allows the absorber to target different subsets of modes, or to adapt to changes in the flexible structure. Computer simulation and experimental work are given which demonstrate the effectiveness of the extended absorber.

Copyright © 1996 by The American Society of Mechanical Engineers
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