通风隔声窗高频声学性能的传递矩阵法分析  

Study on high frequency acoustical performance of a ventilation and sound insulation window using transfer matrix method

作　　者：王佐民[1] 蔺磊[1] 俞悟周[1] 

机构地区：[1]同济大学声学研究所,上海200092

出　　处：《声学技术》2007年第5期904-906,共3页Technical Acoustics

摘　　要：根据声波导管理论,探讨计算高频条件下均匀直管和矩形弯头四端网络参量的方法,以及应用传递矩阵方法分析通风隔声窗高频声学性能的基本思路;实例计算某种通风隔声窗高频隔声量的频响特性,数值计算的结果与实验测量值吻合很好。Methods to eliminate transfer matrix parameters of a straight tube and a rectangle anechoic elbow depending on the theory of sound waveguides are proposed. The main steps for analyzing high frequency acoustical performance of a ventilation and sound insulation window by using transfer matrix method are discussed. Sound insulation of a real ventilation window is calculated and measured, both in good agreement.

关 键 词：隔声窗 传递矩阵 高频 隔声 

分 类 号：TN911.7[电子电信—通信与信息系统]