噪声与振动控制Issue(3)：111-114,4.DOI:10.3969/j.issn.1006-1335.2014.03.023
汽车道路风噪声测试及改进
Wind Noise Measurement of Cars on Real Road and Its Improvement
刘先锋 1王学军 1陈晓宇 1余伟杰1
作者信息
- 1. 上海大众汽车有限公司，上海 201805
- 折叠
摘要
Abstract
Wind noise is one of the most important noise sources of cars running at high speed. Usually, the measurement and analysis of wind noise of cars are done in automobile wind-tunnel. However, it is very expensive to construct and use the wind-tunnel. In this paper, a wind noise evaluation and measurement method of cars running on the real road at high speed and using the neutral gear is introduced. According to the mutual comparison of articulation indexes inside the car, it is verified that the partitions inside pillars of the car have positive influence on the wind noise. Based on this method and the experience of engineers, the abnormal wind noise source of cars can be identified. The optimization of end inner seal at the rear triangle window is carried out to eliminate the abnormal wind noise with the frequencies of 5 kHz-10 kHz.关键词
声学/风噪声/风洞/语音清晰度/NVHKey words
acoustics/wind noise/wind-tunnel/articulation index/NVH分类
通用工业技术引用本文复制引用
刘先锋,王学军,陈晓宇,余伟杰..汽车道路风噪声测试及改进[J].噪声与振动控制,2014,(3):111-114,4.
