thick micro-perforated panel 厚微穿孔板
ultra micro-perforated panel 超微孔板
micro perforated panel muffler 微穿孔板消声器
combine micro-perforated panel 组合微穿孔结构
micro perforated panel spacial absorber 微穿孔板空间吸声体
Then the calculation method of three and four micro-perforated panel's sound impedance is deduced including their absorption coefficient.
之后对多层微穿孔板结构进行了研究,推导出三层以及四层微穿孔板结构声阻抗的计算公式,对其吸声系数进行了计算,比较了同条件下各种结构的吸声性能。
参考来源 - 多层微穿孔板的优化设计及应用·2,447,543篇论文数据,部分数据来源于NoteExpress
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