发动机进气口噪声分析及改进

Analysis and Improvement of Engine Air Inlet Noise

针对某增程式电动客车发动机进气口噪声大的问题设计一款消声器,并对其进行声学性能仿真及结构优化,最后通过试验验证该消声器的降噪效果。

Aiming at the loud noise problem of engine air inlet of a range-extending electric bus,the authors design muffler and simulate the acoustic performance and optimize the structure.Finally,they verify the noise reduction effect of the muffler by the test.