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https://hdl.handle.net/2440/2785
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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 1520-8524 |
Statement of Responsibility: | 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 |
Published version: | http://dx.doi.org/10.1121/1.428225 |
Appears in Collections: | Aurora harvest 6 Environment Institute publications Mechanical Engineering publications |
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