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Type: Journal article
Title: Structural radiation mode sensing for active control of sound radiation into enclosed spaces
Author: Cazzolato, B.
Hansen, C.
Citation: Journal of the Acoustical Society of America, 1999; 106(6):3732-3735
Publisher: Acoustical Society of America
Issue Date: 1999
ISSN: 0001-4966
Statement of
Ben S. Cazzolato and Colin H. Hansen
Abstract: In the recent article by Cazzolato and Hansen [J. Acoust. Soc. Am. 104, 2878–2889 (1998)] it was shown that it is possible to derive for a structure some set of surfacevelocity distributions, referred to as radiation modes, which are orthogonal in terms of their contributions to the acoustic potential energy of a coupled cavity. The technique used an orthonormal decomposition to derive an expression for the radiation modes which was based on prior work for free-field sound radiation. It will be shown in the following letter that for the special case involving the calculation of global internal potential energy it is possible to use a simple approach which requires no orthonormal decomposition since the expression for the global potential energy is already in a form that can be easily diagonalized.
Rights: © 1999 Acoustical Society of America
DOI: 10.1121/1.428225
Appears in Collections:Aurora harvest 6
Environment Institute publications
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