单金属浮动密封有限元模型研究

Research on the finite element model of single-metal floating seal.

针对现阶段橡胶参数理论分析中常用数据与实际橡胶参数值有一定差距,使得研究和分析处于定性阶段的现状,采用理论计算和试验对比的方法确定了单金属浮动密封中橡胶零件参数的准确数值。结果表明,支撑环橡胶材料参数最优值为C10=0.246,C01=0.142,O形密封圈橡胶材料参数最优值C10=0.667,C01=0.318。说明所建立的计算模型能够比较准确地反映实际装配过程中的受力状态,该结论对定量分析单金属浮动密封力学特性具有重要意义。

Considering the situation that there is a certain gap between the theoretical data and real value of rubber's parameter,the precise values of parameters of rubber spare parts in single-metal floating seal were determined by means of theoretical calculation and experimental comparison.The result shows that the optimal parametric values of rubber material for the support ring are C10=0.246 and C01=0.142;the optimal parametric values of rubber material for the O-ring are C10=0.667 and C01=0.318.It indicates that the calculation model established can precisely reflect the stress condition in the practical assembly.This conclusion is of vital importance to the quantitative analysis of the mechanical properties of single-metal floating seal.