Estimation of the area effect of sound absorbent surfaces by using a boundary integral equation

Yasuhito Kawai; Hiroshige Meotoiwa

doi:10.1250/ast.26.123

Acoustical Science and Technology

Online ISSN : 1347-5177
Print ISSN : 1346-3969
ISSN-L : 0369-4232

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Estimation of the area effect of sound absorbent surfaces by using a boundary integral equation

Yasuhito Kawai, Hiroshige Meotoiwa

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Keywords: Sound absorbent surface, Area effect, Boundary integral equation, BEM

JOURNAL FREE ACCESS

2005 Volume 26 Issue 2 Pages 123-127

DOI https://doi.org/10.1250/ast.26.123

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Abstract

A method of predicting the area effect of an absorbent surface with finite dimensions by using a boundary integral equation is proposed and the reason why the area effect occurs is shown. In order to check the effectiveness of the method, some experiments are carried out in a reverberation room. These results are in good agreement with those obtained numerically from the proposed method.

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