摘要
对单腔扩张式消声器传声特性进行了有限元分析 ,与一维平面波法的分析结果进行了比较。结果表明 ,无论是频率成分还是消声量 ,二维有限元分析结果较一维平面波分析的精度有了进一步提高。另外从二维有限元消声器内声压场分布和粘滞性气体声压起伏能量耗散的角度 。
The transfer properties of single cavity exhaust silencer are calculated using finite element method and the results are compared with one dimension planar wave calculation results.The results show that the precision is higher than that of one dimension planer wave calculation on the exhaust silencer frequency property and the muffling magnitude.The results also show that the sound pressure field distribution and the viscosity of gas also affect the properties of exhaust silencer.
出处
《小型内燃机与摩托车》
CAS
北大核心
2001年第2期37-40,共4页
Small Internal Combustion Engine and Motorcycle
关键词
单腔扩张式消声器
传声特性
有限元法
声压场
内燃机
Single cavity expansion silencer,Transfer Property,Finite element method,Sound Pressure field
