文章摘要
刘克,焦风雷,乔五之.微穿孔板吸声体非线性声学特性初探[J].声学技术,2001,(3):135~136,139
微穿孔板吸声体非线性声学特性初探
Rudimentary researches on nonlinear properties of microperforated-panel
投稿时间:2000-01-15  修订日期:2000-12-02
DOI:
中文关键词: 微穿孔板吸声体  非线性  声阻抗率
英文关键词: microperfortaed-panel absorber,  nonlinear properties  acoustic resistance
基金项目:
作者单位
刘克 中科院声学研究所, 北京100080 
焦风雷 中科院声学研究所, 北京100080 
乔五之 北京轻工业学院, 北京100037 
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中文摘要:
      文章以马大猷教授提出的微穿孔板非线性声阻公式为依据,提出了非线性声阻作用的临界条件,并由此进行应用于高声强下微穿孔板吸声体的计算机辅助设计。通过实验对宽频带微穿孔板的非线性特性进行初步分析和实验验证。
英文摘要:
      According to Prof. Maa Dah-you’s equation of nonlinear acoustic resistance of microperforated-panel(MPP) absorber, some critical condtion equations of nonlinear acoustic resistance are proposed in this paper. Additionally, these critical conditional equations are applied to computer aided design (CAD) on MPP under higher sound intensity. Though experiments of MPP, on which the diameter of perforations is less than 0.3 mm,the rudimentary researches of nonlinear properties of MPP are made also. And then, the practicability of CAD on MPP under higher sound intensity is proved experimentally.
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