通风隔声窗声学性能的传递矩阵法分析

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

摘要: 根据平面波理论,提出一种计算矩形消声弯头传递矩阵参量的近似方法;详细介绍应用传递矩阵方法分析通风隔声窗声学性能的基本思路和相关公式;实例计算某种通风隔声窗隔声量的频响特性,数值计算的结果与实验测量值吻合甚好。

Abstract: A new way is proposed to eliminate the transfer matrix parameters of a rectangle anechoic elbow based on the plane wave theory.The main steps and formulae are discussed to analyze acoustical performance of a ventilation and sound insulation window using a transfer matrix method.Sound insulation of a real ventilation and sound insulation window are calculated and measured,both in good agreement.