关于某轻型载货汽车的整车噪声源识别的研究

Research on the vehicle noise source separate

随着人们环境意识的不断提高,车辆噪声问题已引起全社会的高度重视。在此背景下,车辆的NVH(Noise/Vibration/Harshness)性能正逐渐演变为重要的设计指标,也是用户所关心的整车性能指标之一。汽车噪声控制水平,尤其是车内噪声控制水平已经成为决定车型开发成功与否的不可或缺的重要影响因素之一。本文基于某轻型载货汽车车内噪声控制为背景,采用噪声源分离技术,系统识别了影响该车车内噪声的主要因素。

Continuously raise along with people’s environment consciousness,people pay more and more attention to the vehicle noise problem.Under this background,the NVH（Noise/Vibration/Harshness） turning into important design index sign and it is also one of the whole car function index signs that the customer care about.Vehicle noise level,particularly the noise in the cab,the noise level has already become important impact factors to decide whether car development is successful or not.This paper according to a light truck noise adopt noise source separate technique,identified the main factor of influencing the vehicle noise.