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RESEARCH PAPERS

Elastic Wave Propagation from Point Excitations on Thin-Walled Cylindrical Shells

[+] Author and Article Information
A. D. Pierce

Graduate Program in Acoustics and Department of Mechanical Engineering, 157 Hammond Building, Pennsylvania State University, University Park, PA 16802

Hyun-Gwon Kil

School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332

J. Vib. Acoust 112(3), 399-406 (Jul 01, 1990) (8 pages) doi:10.1115/1.2930524 History: Received March 01, 1989; Online June 17, 2008

Abstract

The circular cylindrical shell is described by equations that govern wave propagation in a two-dimensional homogeneous, but anisotropic and dispersive, medium. The idealization of an unbounded medium is applicable if the source is replaced by a periodic array of forces, the repetition distance being the cylinder circumference. Analytical expressions and calculations are presented for wavefront patterns, amplitude distributions, polarizations, and phase velocities for waves on the cylinder surface. The analysis includes all three possible directions of the exciting force and gives fundamental results that can be superimposed to predict vibration fields resulting from arbitrary excitations.

Copyright © 1990 by The American Society of Mechanical Engineers
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