新能源车载D形异型密封圈的性能数值分析

打开文本图片集

中图分类号：TB42 文献标志码：B DOI：10.19710/J.cnki.1003-8817.20250177

Numerical Analysis of the Performance of D-Shaped Special-Shaped Sealing RingsforNew Energy Vehicles

Huang Chongyang， Dong Fei， Xu Zhengjie， Liu Chunning， Luo Yingzhe （Shanghai Chinaust Automotive Plastics Co.，Ltd.， Shanghai 201700）

Abstract：To investigate the influence of the structural parametersofaD-shaped special-shaped sealing ringon itssealing performanceandstability，anaxisymmetric finiteelement modeloftheD-shapedsealing ring isestablished， with the quick-connectorof the batery coling system innew energy vehicles asthe application background.Basedon theMooney-Rivlin hyperelasticconstitutivemodel，thecontact stressonthesealing pathsandtheresistance to extrusionunder fluid pressure are systematically analyzed，with the sealing ring width w asthe variable. The results indicate that as w decreases from 2.O mm to1.2 mm，the stability of the sealing ring improves significantly，with the extrusionresistance pressureincreasing from O.17 MPa to1.11 MPa.The sealing performance also enhances simultaneously，as the initial sealingpressure rises from 1.25 MPato 3.45MPa ，and the contact stresson sealing path 1 remais consistently higher than that on path 2.The research conclusion demonstrates that appropriately reducing thewidthof thesealingring helpsimprove itsoverallsealing performance，providingatheoreticalbasis forthe engineering selection and structural optimization of D-shaped special-shaped sealing rings.

KeyWords：Non-standardsealingring，Compressionratio，Stability，Sealingperformance，FiniteElement Analysis （FEA）

1前言

关键，传统密封方案主要包括橡胶密封件、胶黏剂和海绵胶带等，从形状上可分为0形、矩形以及其他异型密封圈l。（剩余3606字）