车门密封条密封性影响因子分析  

Analysis on Door Weather Strip Sealing Factor

作　　者：陈泱[1] 李婉婉[1] 韩东方[1] 郑娟[1] 潘坡[1] 郭恒如[1] 

机构地区：[1]泛亚汽车技术中心有限公司

出　　处：《汽车工程师》2015年第3期47-49,共3页Automotive Engineer

摘　　要：车门密封条开发过程中,发现同一泡管的压缩位置及方向随着密封条位于车门上的位置不同而改变的问题。通过MARC软件对密封条泡管方案进行压缩变形FEA分析,优化泡管形状、泡管内部屈服应力点的分布、密封条断面泡管的支撑结构以及压缩面形状,定性找出密封性相关因子的影响规律,最终使泡管满足车门上所有位置压缩负荷在4.5~6.0 N,接触宽度在3 mm以上的要求。按照此方法设计的密封条断面面积相对于业界平均水平减小15%,得到具备高性价比的密封条断面。This paper introduces a design method for door weather strip, to solve the problem which the deformation position and direction of weather strip bulb will change along different position of the door panel around. The compression deformation is done FEA with MARC, to optimize the shape of bulb, the distribution of the yield stress points, the bulb base support and the bulb touching surface shape, to find the factors which influence sealing performance. At last, the requirement of the compression load anywhere should be 4.5-6.0 N, the contact length is above 3 mm. The sectional area of weather strip is decreased 15% compared with average sectional area of weather strip, having the best performance.

关 键 词：车门主密封条 泡管 FEA 密封压强 压缩负荷 接触宽度 

分 类 号：U463.834[机械工程—车辆工程]