基于有限元的O形橡胶密封圈装配工艺研究  

Research on Technological Assembly of O-shaped Rubber Sealing Ring Based on Finite Element

作　　者：薛同均 于国强 汪军 XUE Tongjun;YU Guoqiang;WANG Jun(Beijing Tianma Intelligent Control Technology Co.,Ltd.,Beijing 101399,China)

机构地区：[1]北京天玛智控科技股份有限公司,北京101399

出　　处：《机械工程师》2022年第10期113-115,118,共4页Mechanical Engineer

摘　　要：利用有限元分析软件对某阀芯O形橡胶密封圈装配过程进行仿真模拟,对O形橡胶密封圈不同线径下的应力和压缩率进行分析,确定了截面尺寸对密封性能的影响。利用Mooney-Rivlin模型,进行了非线性有限元分析,计算了不同线径的密封圈在装配后的接触应力、切向应力等。随着线径的增大,O形密封圈的变形、接触应力、Von Mises应力都会增大。确定了密封圈的线径范围,为阀芯中合理装配密封圈提供了相关参考。根据模拟数据进行验证实验,确定了O形橡胶密封圈的装配工艺。The finite element analysis software is used to simulate the assembly process of a valve core O-shaped rubber sealing ring,and the stress and compression rate of the O-shaped rubber sealing ring under different wire diameters are analyzed.The effect of cross-sectional dimensions on sealing performance is determined.By using the Mooney-Rivlin model,a nonlinear finite element analysis is performed to calculate the contact stress and tangential stress of the sealing rings with different wire diameters after assembly.As the wire diameter increases,the deformation,contact stress,and Von Mises stress of the O-shaped sealing ring will increase.The wire diameter range of the sealing ring is determined,which provides a reference for the reasonable assembly of the sealing ring in the valve core.The verification experiment is carried out according to the simulation data,and the assembly process of the O-shaped rubber sealing ring is determined.

关 键 词：非线性有限元分析 O形密封圈 装配工艺 

分 类 号：TB42[一般工业技术]