利用频响函数的倒数评价内燃机排气消声器的传声损失  

Evaluating Transmission Loss of Muffler in Exhaust System of Engine by Using 1/H (f)

作　　者：刘志刚[1] 张天元[1] 张洪田 柳贡民 张文平 马强[1] 

机构地区：[1]哈尔滨船舶工程学院

出　　处：《内燃机学报》1994年第2期139-144,共6页Transactions of Csice

摘　　要：本文利用频响函数的倒数导出了三种评价消声器传声损失（Ｒ）的方法。利用这些方法，可以获得比传统方法更丰富的信息，与传声损失总值一起应用，可完整地评价消声器的声学性能。In this paper, three kinds of methods to evaluate the transmission loss of muffler are developed by using the reciprocal of frequency response function (1/H(f)). By means of the methods, more information can be obtained than by traditional ones. The methods, together with total transmission loss, can be used for evaluating integrally acoustic characteristics of muffler.

关 键 词：传声损失 噪声 消声器 内燃机 

分 类 号：TK403[动力工程及工程热物理—动力机械及工程]