摘要
基于多孔吸声材料的理论及声学传递矩阵理论，分析了目前广泛应用于汽车排气净化消声器中的陶瓷蜂窝载体的消声机理，给出了其声学传递矩阵，并分析了影响其声学性能的主要因素，对传声损失进行了模拟计算．
Sound muffling mechanism widely applied to ceramic beehive carrier currently for motor vehicle exhaust emission purification muffler are analysed and its acoustic transmitting matrix is give out basedon the theory of multi-hole acoustic absorbtive material of theory of acoustic transmitting matrix, and severalprincipal factors which affect property are also analysed. Simulating computation of sound transmitting losshas been carried out, of which the result is practically the same as that by substantial measurement.
出处
《河北工业大学学报》
CAS
1999年第6期46-50,共5页
Journal of Hebei University of Technology
关键词
排气净化消声器
堇青石陶瓷载体
声学特性
汽车
消声机理
Exhaust purging muffler, Cordierite ceramic substrate, Acoustic characterstic, Automobile
