材料声学特性的典型参数测试技术研究进展

吸声系数和隔声量是描述材料声学特性的典型参数,首先分析了材料吸声系数和隔声量测试技术的研究意义,指出提高材料吸声系数和隔声量测试技术符合我国先进武器装备的发展需求。梳理了国内外吸声系数和隔声量的主要实验室测试方法及标准,具体介绍了阻抗管法、混响室法、Alpha舱法测量材料吸声系数,阻抗管法、混响室-混响室法、混响室-消声室法、Alpha舱法测量材料隔声量的研究进展,分析了各种测试方法的优缺点,最后展望了该领域的发展趋势。

Research Progress on Typical Parameters Testing Techniques for Acoustic Properties of Materials

Absorption coefficient and sound insulation are typical parameters of acoustic properties of materials. Firstly, the significance of absorption coefficient and sound insulation testing techniques was analyzed, which pointed out that the improvement of sound absorption coefficient and sound insulation testing techniques met the development demand of advanced weapon equipment in China. Then, the main laboratory test methods and standards of absorption coefficient and sound insulation at home and abroad were combed. The impedance tube method, reverberation chamber method and Alpha cabins method for measuring sound absorption were introduced in detail and the research progress on impedance tube method, reverberation chamber method, reverberation chamber-Anechoic chamber method and Alpha cabin for measuring sound insulation were also analyzed and the advantages and disadvantages of various testing methods were analyzed. Finally, the development trend of this field was prospected.