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RESEARCH PAPERS: Noise Control and Acoustics

On the Vibration Damping of a Plate by Means of a Viscous Fluid Layer

[+] Author and Article Information
K. Uno Ingard

Department of Physics and Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139

Adnan Akay

Mechanical Engineering Department, Wayne State University, Detroit, MI 48202

J. Vib., Acoust., Stress, and Reliab 109(2), 178-184 (Apr 01, 1987) (7 pages) doi:10.1115/1.3269411 History: Received August 31, 1986; Online November 23, 2009

Abstract

Vibration damping of a plate by means of a fluid layer is investigated. First, the frequency-dependent flow resistance of a fluid layer is explained with a simple illustration of the damping mechanism. Then, the vibration response of a plate is examined when it is backed by a rigid plane or another flexible plate with a fluid layer constricted in-between. Effects of the plate motion and acoustic radiation on the damping mechanism are also considered. The numerical results are presented in terms of frequency response of the plates.

Copyright © 1987 by ASME
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