摘要
本文首先建立了计算轴对称抗性消声器传递损失的数学模型,并利用加辽金有限元理论,建立了相应的有限元模型;最后用该模型计算分析了二个消声器的传递损失,通过实验验证和与声传递矩阵计算结果相比较表明:有限元计算结果具有较高的精度。
The mathematic model and its respective Galerkin Finite Element Model for evaluating the transimission loss of a axisymmetrical reactive muffler with air-flow are set up. Then the transimission loss of two mufflers is calculated. The results show good agreement with the measured ones in testing and are more accurate than transfer matrix method at middle and high frequencies.
出处
《汽车工程》
EI
CSCD
北大核心
1994年第5期296-302,共7页
Automotive Engineering
关键词
消声器
有限元法
气流
传递损失
汽车
Silencer Finite element method Air-flow Transmission loss
