Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21926
Title: Modifications of acoustic modes and coupling due to a leaning wall in a rectangular cavity
Authors: Li, YY
Cheng, L 
Issue Date: 2004
Source: Journal of the Acoustical Society of America, 2004, v. 116, no. 6, p. 3312-3318
Abstract: Acoustic modes and the coupling characteristics of a rectangular-like cavity with a slight geometrical distortion introduced through a leaning wall are investigated in this paper. A pressure variation index is proposed to quantify the global changes in acoustic modes caused by the inclination of the wall. Effects on the coupling between acoustic modes and structural modes are investigated using coupling coefficients. Numerical results show a simple relationship between the distortion effect and the acoustic wavelength. The effect is most significant when the distortion approaches the half wavelength. Compared with a rectangular enclosure, the existence of the leaning wall gives rise to a much more effective coupling between the structure and the enclosure.
Publisher: Acoustical Society of America
Journal: Journal of the Acoustical Society of America 
ISSN: 0001-4966
EISSN: 1520-8524
DOI: 10.1121/1.1823331
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