Effect of sound-absorbing material on a microperforated absorbing construction

被引：6
|
作者：
LIN Lei WANG Zuomin JIANG Zaixiu (Institute of Acoustics
机构：
来源：
Chinese Journal of Acoustics | 2011年 / 30卷 / 02期
基金：
中国国家自然科学基金;
关键词：
ab; Effect of sound-absorbing material on a microperforated absorbing construction;
D O I：
10.15949/j.cnki.0217-9776.2011.02.004
中图分类号：
TB34 [功能材料];
学科分类号：
080501 ;
摘要：
According to the thickness and the configuration of sound-absorbing material,the cavity’s acoustical impedance and the aperture’s radiation acoustical impedance is analyzed in detail.Thus,to predict and optimize the sound absorption performance of the composite structure of sound-absorbing material and microperforated panel,a theoretical model is established. And the acoustical properties of several composite structures used commonly are comparatively analyzed both in theory and experiment.Good agreement between the theoretical calculations and experimental results shows the availability of model.Taking into account the performance and economy,the composite structure of sound-absorption material in the middle of cavity is suggested.
引用
收藏
页码：191 / 202
页数：12
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