A Theoretical Analysis of Transient Sound Radiation From a Clamped Circular Plate

[+] Author and Article Information
A. Akay, M. Tokunaga, M. Latcha

Mechanical Engineering Department, Wayne State University, Detroit, Mich. 48202

J. Appl. Mech 51(1), 41-47 (Mar 01, 1984) (7 pages) doi:10.1115/1.3167595 History: Received November 01, 1982; Revised June 01, 1983; Online July 21, 2009


A theoretical analysis of transient sound radiation from a clamped circular plate is given using a pressure impulse response method. The vibration response of the plate to a transient point force is obtained. The modal pressure impulse response functions for the plate are derived from the Rayleigh surface integral and numerically convoluted with the modal acceleration response of the plate. The impulse response functions are closely related to the mode shapes and the geometry of the problem. They relate the spatial domain to the temporal domain of the pressure waves. The pressure impulse response waveforms are given for a number of plate modes and the changes in the waveforms with distance from the plate are shown. Sound radiation due to forced and free vibrations of the plate are discussed.

Copyright © 1984 by ASME
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