Abstract: The finite element method is used to analyze the nonlinear contact of the wormlike sealing ring in Dn1160 high-pressure sintering furnace. Using Ansys 14.5 to simulate the Von Mises stress under different static. Through the contact deformation, contact stress and the distribution of the stress, the easily crack position and service life of the wormlike sealing ring can be reflected. Then discuss the effects of different system pressure, notch radius, seal clearance, friction coefficient on the sealing performance. So as to evaluate the sealing performance of the wormlike sealing ring.

Key words: Wormlike sealing ring, Nonlinear FEM, Contact analysis

摘要： 采用FEM 方法对Dn1160型压力烧结炉中虫形密封圈做非线性接触分析,利用Ansys14.5模拟计算虫形密封圈VonMises应力、接触变形、接触应力及分布情况,对比不同参数时开裂破坏及寿命。讨论了系统内压、槽口半径、密封间隙、摩擦系数改变对密封性能的影响,进而完善虫形圈的密封性能。

关键词: 虫形密封圈, 非线性有限元, 接触分析