中文摘要：

根据厚度和健全吸收的材料的配置，洞的听觉的阻抗和孔是放射听觉的阻抗详细被分析。因此，预言并且优化健全吸收的材料和 microperforated 面板的合成结构的健全吸收表演，一个理论模型是 established.And 通常使用的几合成结构的听觉的性质比较地在理论和实验两个都被分析。在理论计算和试验性的结果之间的好同意显示出模型的可获得性。考虑表演和经济，在洞的中间的健全吸收的材料的合成结构被建议。

英文摘要：

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.