MD6790客车车外加速噪声处治技术  

Treatment Technology of Noise Emitted by Accelerating MD 6790 Caoch

作　　者：闵照源[1] 曹飞[1] 刘剑[1] 刘建忠[2] 

机构地区：[1]国家客车质量监督检验中心,重庆400067 [2]江苏牡丹汽车股份有限公司,江苏张家港215621

出　　处：《客车技术与研究》2003年第5期39-41,共3页Bus & Coach Technology and Research

摘　　要：针对 MD6790客车车外噪声较大情况 ,运用分别运行法和声强测量法对其进行噪声源识别和噪声产生机理研究 ,并在此基础上采取具有针对性的降噪措施 ,使之车外加速噪声有了显著下降 ,达到了国标 GB1 4 95— 2 0 0According to the situation that the noise emitted by accelerating MD6790 coach is too high, the paper uses parts working measurement and phonometry to identify the noise sources, and to study its generation mechanism.Based on this, some steps are adopted to reduce the noise.The noise declines remarkably and accords with the limits I of GB 1495-2002 at last.

关 键 词：MD6790客车 车外加速噪声 分别运行法 声强测量法 噪声控制 降噪措施 噪声源识别 

分 类 号：U467.493[机械工程—车辆工程] U469.1[交通运输工程—载运工具运用工程]