自动挡轿车怠速工况后排噪声控制研究  

Research on rear noise control in a automatic car idling conditions

作　　者：石传龙[1] 吴玉[1] 

机构地区：[1]天津职业技术师范大学汽车与交通学院,天津300222

出　　处：《天津职业技术师范大学学报》2012年第2期23-26,共4页Journal of Tianjin University of Technology and Education

基　　金：天津市高等学校科技发展基金计划项目(20080416);天津市科委计划项目(2009GJA10018);天津职业技术师范大学科研发展基金资助项目(kj0833)

摘　　要：针对自动挡轿车怠速工况车内后排噪声高于前排问题进行了研究。通过车内噪声的主观评价、摸底测试和排气噪声源的分离测试,发现发动机结构噪声通过后悬置传递到车内,导致怠速工况下车内后排噪声高于前排。通过优化后悬置,后排怠速噪声单独降低2 dB,后排怠速轰鸣声得到了良好的控制。In a automatic car idling conditions, the car rear noise is higher than the front. By the subjective evaluation of interior noise, diagnostic testing and the exhaust noise source separation testing, the engine structure-borne noise passed to the car by rear suspension was found, so the car rear noise is higher than the front in idle condition. According to actual situation, by optimizing the rear suspension the rear idle noise was reduced 2dB alone. Rear idle noise get good control.

关 键 词：轿车 怠速 噪声 控制 

分 类 号：U467.4[机械工程—车辆工程]