Research on the sound absorption performance of metal rubber material

被引：3
|
作者：
E.A.Izzheurov [1 ]
机构：
[1] Samara State Aerospace University Samara of Russia
来源：
Chinese Journal of Acoustics | 2009年 / 28卷 / 02期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.15949/j.cnki.0217-9776.2009.02.004
中图分类号：
O422.4 [声的吸收与衰减];
学科分类号：
070206 ; 082403 ;
摘要：
The sound absorption performance of Metal Rubber material was studied theoreti- cally and experimentally.The acoustic impedance rate and the sound absorption coefficient were derived based on the acoustic parameters of metal rubber material.The relation of structure constant,compressibility modulus and structural parameters was investigated experimentally. The results showed that the specimen of metal rubber with the same mean porosity diame- ter had the same structure constant.For the same structural parameters,the compressibility modulus of metal rubber material was approximately constant in certain frequency range.The calculated acoustic parameters are in good agreement with the experimental results,demon- strating the effectiveness of theoretical models.
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页码：154 / 162
页数：9
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