屏蔽技术在微型客车降噪设计中的应用研究

An Experimental Study on the Low Noise Design of a Microbus Using Shield Technology

结合一款微型客车进行的降噪设计,通过识别汽车的噪声源,对噪声源发动机进行局部屏蔽和改善座椅地板的密封性能等措施,不仅降低了发动机辐射到汽车外环境里的噪声,同时也改善了车内的声学环境,并通过试验来进行验证。

A low noise design of a microbus is described. Through identifying the noise source of the microbus, a noise shield control technology on the engine was used, and seat sealing property of floor was improved, sound pressure level of the engine noise which radiates into the outside environment was reduced, and the acoustics environment in the microbus was also improved, and the results are proved by a test.