基于发动机热力过程的汽车排气消声器设计

Design of Automotive Exhaust Muffler Based on Thermodynamic Process of Engine

基于发动机的热力循环理论和管道声学理论 ,利用AVL公司的BOOST软件联合建立了发动机和消声器的仿真模型 ,在此基础上进行了Flyer轿车的排气消声器设计 ,试验证明这种设计方法能够充分考虑发动机的综合性能和消声性能。

Using AVL BOOST software based on the theory of engine thermodynamics cycle and flow duct acoustics,the simulation models of engine and muffler are set up.Based on the models,the exhaust muffler for Flyer car is designed.The test result shows that the method is ideal for the design of exhaust muffler.