动力总成引起的轿车车内异常噪声试验研究  

Research on Abnormal Interior Noise of a Car Caused by Power Train

作　　者：李元宝[1] 郑伟娟[1] 李守魁[1] 

机构地区：[1]中国第一汽车集团公司技术中心

出　　处：《汽车技术》2010年第12期41-44,共4页Automobile Technology

摘　　要：针对某轿车车内异常噪声现象,在整车半消声室,通过对振动噪声的主观评价,并结合振动测量及发动机转速跟踪测量试验进行了振源识别,找出了引起车内异常噪声的原因,采取改进发动机悬置结构的方法消除了车内异常噪声,提高了该轿车的振动噪声品质。To eliminate abnormal interior noise of a car,a subjective evaluation,vibration measurement and engine speed tracking measurement test were made to the complete vehicle half anechoic room for source of vibration identification.The causes of abnormal noise of the car were found.By improving engine mount structure,abnormal interior noise was eliminated and interior sound quality was improved.

关 键 词：轿车车内异常噪声 振源 识别 

分 类 号：U467.493[机械工程—车辆工程]