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 0
According 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.
出处
《客车技术与研究》
2003年第5期39-41,共3页
Bus & Coach Technology and Research
