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。
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-perforated 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.
出处
《声学技术》
CSCD
北大核心
2008年第2期251-254,共4页
Technical Acoustics
关键词
微孔板
声学特性
表面声阻抗率
法向吸声系数
micro-perforated panel
acoustical characteristic
surface specific acoustic impedance
normalsound absorption coefficient
