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RESEARCH PAPERS: Noise Control and Acoustics

Asymptotic Modal Analysis and Statistical Energy Analysis of an Acoustic Cavity

[+] Author and Article Information
Y. Kubota, H. D. Dionne, E. H. Dowell

Department of Mechanical Engineering and Materials Science, School of Engineering, Duke University, Durham, North Carolina 27706

J. Vib., Acoust., Stress, and Reliab 110(3), 371-376 (Jul 01, 1988) (6 pages) doi:10.1115/1.3269528 History: Received September 15, 1987; Online November 23, 2009

Abstract

One of the outstanding theoretical questions in interior noise is the connection between modal analysis and statistical energy analysis. Recently substantial progress has been made in understanding this connection for structural vibrations including both fundamental theoretical work and experimental verification. It has been shown that many of the results of Statistical Energy Analysis can be derived as an asymptotic limit of classical modal analysis and thus this approach is called Asymptotic Modal Analysis. The basic asymptotic theory for structural wall-acoustic cavity interaction is described in this paper. Several numerical examples are presented for acoustic cavity response with a prescribed wall motion to illustrate the key results of the theory.

Copyright © 1988 by ASME
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