车身噪音的分析与控制  

Solutions of Noise Character in Automobile

作　　者：阎勤劳[1] 杨志勇[1] 朱焘[1] 

机构地区：[1]广东白云学院机电工程学院,广州510640

出　　处：《装备制造技术》2015年第10期160-161,165,共3页Equipment Manufacturing Technology

摘　　要：为了降低汽车行驶过程中车内噪音,根据车身消除噪音的结构特点进行了噪音成因分析和汽车消音性能变化特性分析,结果认为,随着汽车的运行时间的延长,车身密封性能下降、阻尼材料老化、污染为汽车消音性能下降的主要原因,适当的维护车身结构和更换、清洁污染或更换老化的阻尼材料,可以保持车身的消除噪音功能。In order to reduce the noise in automobile when it was traveling, the variation character of noise factor and noise reduction performance were analysed by structural features of eliminating noise, the results show that the car run in longer time, the sealing property are wronger, damping materials aging, pollution are mainspring for automobile deleting performance decrease, the eliminate noise function may be keeped by maintaining body structure, replacing damping material, cleaning pollution.

关 键 词：汽车 行驶 噪音 维护 

分 类 号：U467.4[机械工程—车辆工程]