某重卡发动机风扇噪音分析及降噪方法  

The way Reducing Engine Drive Fan Noise of Heavy Duty Truck

作　　者：李云趣 李鹏山 李鹏 Li Yunqu;Li Pengshan;Li Peng(Shaanxi Heavy Truck Co.,Ltd.Automotive Engineering Research Institute,Shaanxi Xi'an 710200)

机构地区：[1]陕西重型汽车有限公司汽车工程研究院,陕西西安710200

出　　处：《汽车实用技术》2020年第21期54-56,共3页Automobile Applied Technology

摘　　要：发动机冷却风扇在高速运转时产生的噪音是车辆噪音的主要激励源,文章研究了发动机冷却风扇噪音的产生机理以及计算方法,并对现有重型卡车风扇控制方式进行了对比,在处理重卡车辆噪音较大问题时,通过更换发动机风扇控制方案的办法,有效降低车辆噪音等级。The noise produced by Engine drive Fan in high-speed operation is the main excitation source of vehicle noise, generation principle and calculation method of engine drive Fan noise for heavy truck are studied in this papers, control methods of engine drive Fan for heavy truck are compared, When dealing with the problem of truck noise, method of changing the control scheme of engine drive fan, and solved the client’s problems.

关 键 词：重卡 噪音 发动机冷却风扇 发动机风扇控制 

分 类 号：U464[机械工程—车辆工程]