Mechanisms of Localized Vibration Control in Complex Structures

[+] Author and Article Information
J. Hannsen Su, C. E. Ruckman

Structural Acoustics and Hydroacoustics Research Branch, Carderock Division, Naval Surface Warfare Center, Bethesda, Maryland 20084-5000

J. Vib. Acoust 118(1), 135-139 (Jan 01, 1996) (5 pages) doi:10.1115/1.2889627 History: Received May 01, 1993; Online February 26, 2008


This paper describes a numerical study of mechanisms for controlling all six degrees of freedom in localized areas of a complex structure. In localized vibration control, the controller attempts to stabilize one or more localized areas on the structure rather than attempting to stabilize the entire structure. The relative performance levels of different control strategies are evaluated by examining a frequency-dependent disturbance rejection property. A flat plate supported by two box girders is used as an example realistic structure. Plant dynamics from a finite-element model are used to draw general conclusions regarding the mechanisms by which localized vibration control is exerted.

Copyright © 1996 by The American Society of Mechanical Engineers
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