基于车内噪声的轿车NVH改进

NVH Improvement Based on Acoustic Noise inside Vehicle

随着汽车产业的发展和进步,汽车的NVH性能,尤其是汽车的车内噪声性能越来越引起人们的重视。文章以GB/T18697—2002《汽车车内噪声测量方法》为理论基础,介绍了车内噪声测量的试验要求和测量技术要求,并对某轿车NVH改进前后的车内噪声性能进行对比分析,表明经过改进的轿车在匀速行驶和发动机扫描工况下,车内噪声降低,改进措施良好,从而得到了该轿车基于车内噪声的车辆NVH改进分析结果。

With the development and progress of auto industry, NVH performance of vehicles particular acoustic noise have attracted people＇s attention. Based on GB/T18697-2002 ＇Acoustic Noise Measurement inside Vehicle＇, the test and measurement requirement of acoustic noise inside vehicle is introduced. Comparative analysis of acoustic noise performance before and after specific NVH improvement is proceeded. It is indicated that improved car in constant speed and engine scanning mode, acoustic noise is reduced and improvement measurement is better. The result of NVH improvement analysis based on acoustic noise is reached