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RESEARCH PAPERS

Sound Radiation From a Finite Cylindrical Shell Covered With a Compliant Layer

[+] Author and Article Information
B. Laulagnet, J. L. Guyader

Laboratoire Vibrations-Acoustique, 20 Avenue A. Einstein, 69621 Villeurbanne Cedex, France

J. Vib. Acoust 113(2), 267-272 (Apr 01, 1991) (6 pages) doi:10.1115/1.2930180 History: Received November 01, 1989; Online June 17, 2008

Abstract

The aim of this work is to present the mathematical analysis and numerical results about sound radiation from a finite cylindrical shell covered with a compliant layer, immersed in water. The shell motion is obtained using Flügge’s operator whereas the layer is described by a locally reacting material. The results are presented both in shell radial quadratic velocity and radiated power. Two major conclusions can be drawn when looking at results: (1) a reasonable stiffness layer allows one to reduce the radiated power in a large frequency domain; (2) the layer has a strong influence on the shell velocity which exhibits an antiresonance phenomenon when covered.

Copyright © 1991 by The American Society of Mechanical Engineers
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