流体密封橡胶圈密封性能分析  

Sealing Performance Analysis of Rubber O-ring for Fluid Sealing

作　　者：孙健[1] 迟可伟[1] 冯茂林[1] 张文明[1] 

机构地区：[1]北京科技大学土木与环境工程学院车辆工程研究所,北京100083

出　　处：《润滑与密封》2006年第1期102-105,共4页Lubrication Engineering

摘　　要：对通用的O形橡胶密封圈结构进行简化,采用罚函数接触单元法,对其中的关键密封元件O形橡胶密封圈采用超弹性单元建立了包含接触的非线性模型,并运用通用大型有限元分析软件ANSYS对其进行了求解。对于不同变形情况下的压缩量,以及压缩后施加侧压后的应力进行了分析。同时还对照计算了O形圈接触界面摩擦因数不同情况下的变形及扭转。结果表明,所采用的方法能够预测O形圈压缩中的变形和应力等特征参数,增加对O形密封圈密封性能的了解,并对同类密封结构设计有一定的指导意义。The simplified general rubber O-ring sealing structure was analyzed with tinite element and penalty function method. The nonlinear finite element model was built with hyperelastic element by ANSYS. Compress of O-ring under different displacement and the stress under side pressure on compressed O-ring were analyzed. Meanwhile, the cases of different friction coefficient between O-ring and contact wail were also simulated. According to the result, the method used can predict successfully the deformation and stress of O-ring and other parameters in squeeze. It also enriches the understanding of O-ring sealing performance.

关 键 词：0形橡胶圈 接触 非线性有限元 超弹性 

分 类 号：TB42[一般工业技术]