文章摘要
盛胜我,莫方朔.木质装饰微孔板声学特性的预测[J].声学技术,2008,(2):251~254
木质装饰微孔板声学特性的预测
Prediction of acoustical characteristics of wooden micro-perforated panels
投稿时间:2007-04-30  修订日期:2008-01-28
DOI:
中文关键词: 微孔板  声学特性  表面声阻抗率  法向吸声系数
英文关键词: micro-perforated panel  acoustical characteristic  surface specific acoustic impedance  normal sound absorption coefficient
基金项目:
作者单位
盛胜我 同济大学声学研究所, 上海, 200092 
莫方朔 同济大学声学研究所, 上海, 200092 
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中文摘要:
      对一种木质装饰微孔板的声学特性进行了理论预测,导出了各项结构参数与表面声阻抗率和法向吸声系数之间的关系。与驻波法的实验结果比较表明,两者良好吻合。通过预测可以得出木质微孔板的开槽深度,条纹宽度与间隔等对吸声性能的影响,从而优化其结构。这种木质微孔板特别适用于厅堂的音质设计,它可以兼顾室内装饰和声学处理两种效果。
英文摘要:
      Sound absorption characteristics of wooden micro-perforated panels are theoretically predicted.Predictions of sound absorption coefficient and impedance are well consistent with the measurement results in impedance tube.The factors affecting the absorption characteristics of such wooden micro-perfor-ated panels are further discussed.And it is especially recommended to use them in auditorium acoustics design due to good performances in both interior decoration and acoustics.
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