文章摘要
桑建兵,邢素芳,刘宝会,王静远,刘春阳.基于Odgen模型O型橡胶密封圈的大变形接触分析[J].润滑与密封,2014,39(2):38-42
基于Odgen模型O型橡胶密封圈的大变形接触分析
  
DOI:10.3969/j.issn.0254-0150.2014.02.008
中文关键词: 橡胶密封圈  Odgen模型  非线性有限元分析  MSCMarc  接触应力
英文关键词: rubber O ring  odgen model  nonlinear finite element analysis  MSC.Marc  contact stress
基金项目:河北省自然科学基金项目(E2011202115);天津市自然科学基金项目(12JCYBJC19600)
作者单位E-mail
桑建兵 河北工业大学 sangjianbing@126.com 
邢素芳 河北工业大学  
刘宝会 河北工业大学  
王静远 河北工业大学  
刘春阳 河北工业大学  
摘要点击次数: 942
全文下载次数: 0
中文摘要:
      利用大型非线性有限元软件MSCMarc,基于橡胶类材料单轴拉伸所得到的应力应变曲线,通过数据拟合确 定Odgen模型的材料参数。建立O型橡胶密封圈非线性有限元计算模型,分析不同的介质压力对橡胶密封圈力学性能 的影响,得到橡胶密封圈的Von mises应力的分布规律、主接触面以及侧接触面接触应力的分布曲线。研究结果表明: 随着介质压力的增加,Von mises应力随之增加,并向密封圈与沟槽的接触区域转移。在主接触面和侧接触面接触应力 的分布近似为二次抛物线,接触应力的最大值出现在接触区的中点,随着介质压力的增加,接触应力的峰值和接触宽度 明显增加,且应力峰值均大于介质压力,能够较好地防止介质的泄漏。
英文摘要:
      By utilizing nonlinear finite element analysis software MSC.Marc,the material parameters of Odgen model were determined through curve fitting by using the experimental data of uniaxial tensile experiments of rubber like materials.The nonlinear finite element model of rubber O ring seals was set up and the influence of different medium pressure on the mechanical properties of rubber O ring seals was analyzed.The distribution of Von mises stress and contact stress on primary contact surface and side contact surface was achieved.The results show that with the increase of medium pressure,the Von mises stress is increased and transfered to the contact zone between rubber seal and groove,and its distribution on primary contact surface and side contact surface is approximate quadratic parabola.The maximum contact stress appears on the middle contact zone,and it is increased obviously with the increases of medium pressure.The maximum contact stress is greater than medium pressure,which can prevent the leakage of medium.
查看全文   查看/发表评论  下载PDF阅读器
关闭

分享按钮