The effect of wall elasticity on the properties of a Helmholtz resonator
作者:
Douglas M. Photiadis,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1991)
卷期:
Volume 90,
issue 2
页码: 1188-1190
ISSN:0001-4966
年代: 1991
DOI:10.1121/1.402026
出版商: Acoustical Society of America
关键词: WALL EFFECTS;RESONATORS;ABSORBERS;BOUNDARY CONDITIONS;SOUND WAVES
数据来源: AIP
摘要:
The effect of compliant walls on the properties of a Helmholtz resonator is examined. The effective stiffness of the resonator is decreased by the wall compliance, while the effective mass is unchanged to leading order. The radiation resistance is also decreased due to a cancellation between the radiation from the cavity opening and the radiation from the cavity walls. This leads to a reduction in the cross section at resonance by the factor [Zs/(Zs+Z0f)]4, whereZsis the wall impedance andZ0fis the total fluid loading on the breathing mode of the cavity.
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