基于动态密封的高速行驶风噪声问题诊断  

Diagnosis of High-Speed Wind Noise Based on Dynamic Sealing

作　　者：吴海川 赵伟 潘殿龙 张奥 刘晓娜 李登山 Wu Haichuan;Zhao Wei;Pan Dianlong;Zhang Ao;Liu Xiaona;Li Dengshan(Global R&D Center,China FAW Corporation Limited,Changchun 130013)

机构地区：[1]中国第一汽车股份有限公司研发总院,长春130013

出　　处：《汽车工程师》2025年第1期37-42,共6页Automotive Engineer

摘　　要：为分析某车型高速行驶工况下风噪声异常增大的原因,从动态密封的角度出发,采用密封条压力分布测试系统测试密封条动态压痕,检测动态密封泄漏情况,并分析动态密封对高速行驶工况下风噪声的影响,识别出车门密封失效产生的泄漏噪声是高速行驶风噪声异常增大的原因。通过研究动态密封的影响因素,发现车门与车身内间隙超差是该车型动态密封失效的主要原因,并总结提出高速行驶工况下风噪声异常的诊断方法。To analyze the reason for the abnormal increase in wind noise of the vehicle at high speed,the paper employs a seal pressure distribution testing system from the perspective of dynamic sealing.It measures the dynamic indentation of the seals,detects dynamic sealing leaks,and analyzes their impact on wind noise at high speeds,identifying the leakage as the source of the increased noise.By studying the influencing factors of dynamic seal,the research reveals that the excessive deviation of the clearance between door and the vehicle body is a main reason for the loss of the sealing contact.The paper concludes and proposes the diagnosis method for the abnormal wind noise at high speed.

关 键 词：高速行驶风噪声 动态密封 泄漏噪声 密封条动态压痕 

分 类 号：U461.4[机械工程—车辆工程]