基于胶带密封法的汽车各密封部位动静态泄漏噪声的试验研究  

Experimental Study on Vehicle Dynamic and Static Leak Noises at Different Sealing Positions Based on Tape Sealing Method

作　　者：杨志刚[1,2,3,4] 彭里奇 沈哲 陈力[1,2] Yang Zhigang;Peng Liqi;Shen Zhe;Chen Li(Shanghai Automotive Wind Tunnel Center,Tongji University,Shanghai 201804;Shanghai Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems,Shanghai 201804;Postdoctoral Station of Mechanical Engineering,Tongji University,Shanghai 201804;Beijing Aeronautical Science&Technology Research Institute,Beijing 102211)

机构地区：[1]同济大学,上海地面交通工具风洞中心,上海201804 [2]上海市地面交通工具空气动力与热环境模拟重点实验室,上海201804 [3]同济大学机械工程博士后流动站,上海201804 [4]北京民用飞机技术研究中心,北京102211

出　　处：《汽车工程》2021年第5期784-790,共7页Automotive Engineering

基　　金：上海市重点实验室项目(18DZ2273300);上海市专业技术服务平台项目(19DZ2290400)资助。

摘　　要：本文对汽车泄漏噪声产生机理及其研究方法进行了概述,并分别对试验车辆进行动态的风洞车内噪声试验与静态的车身隔声试验。试验中采用胶带密封法,对门、侧窗、天窗和风窗等不同部位密封的动、静态泄漏噪声贡献量进行了分析,分离出不同机理产生的泄漏噪声。结果表明,空腔噪声与气吸噪声是汽车实际泄漏噪声的主导成分,活动密封结构对泄漏噪声的贡献更大。In this paper,the generation mechanisms of vehicle leak noise and its research methods are summarized,and the dynamic wind tunnel interior⁃noise test and static body sound⁃insulation test are carried out re⁃spectively on the test vehicle.During the tests,the tape sealing method is used to analyze the contributions of seals in different positions,including doors,side windows,skylights and windshield etc.,to the dynamic and static leak noise was analyzed,and the leak noises generated by different mechanisms are separated.The results show that cavi⁃ty noise and aspiration noise are the main components of vehicle leak noise,and active seal structure has greater contributions to the leak noise.

关 键 词：泄漏噪声 风洞试验 密封结构 密封对比法 气吸噪声 

分 类 号：U467.493[机械工程—车辆工程]