车辆噪声法规与通过噪声模拟方法现状与进展

Review of Automobile Noise Regulations and Pass-by Noise Simulation Methods

通过对比现有国内外车外噪声测量方法与标准限值,指出国外在通过噪声测量中的最新进展和我国噪声标准法规中有待改进的方向。归纳了目前运动车辆车外噪声源的常用识别方法,为更高效、快捷地识别车辆主要振动噪声源理念提供借鉴作用。总结了国内外对于不同工况下车外通过噪声数值模拟方法,为创建更深入全面的通过噪声预测模型提供一种全局性的思路。

Comparing with the existing test methods and limits on vehicle exterior noise in China and abroad, the latest progress in pass-by noise measurement in foreign countries was exhibited, and the direction of improve- ments to be achieved in China was presented. To provide a reference for identification of main noise sources of automobile in an efficient and accurate way, common analysis methods adopted for discrimination on a moving vehicle were discussed. To supply a comprehensive frame for more profound and focused model in exterior noise prediction, numerical simulation methods applied in different moving conditions are systemized.