针对端面气膜密封设计中遇到的几种典型端面结构 ,对它们的密封特性进行了定量的分析比较 ,特别是建立了不同典型端面的密封特性与膜厚的关系 ,有利于指导端面气膜密封的端面选型。分析中 ,对每种密封端面 ,其结构参数都是依据有关文献选取的优化或近似优化的数据。在有关端面密封气膜压力分布的计算中 ,采用了对几何结构适应性强的有限元素法。 In view of several typical end face structures encountered in the design of the end face gas seal, the quantitative analysis and comparison of the sealing characteristics of the end face gas seals are made. In particular, the relationship between the sealing characteristics and the film thickness of different typical end faces is established, which is conducive to guiding the end face gas film Sealed end face selection. In the analysis, for each seal face, the structural parameters are based on the optimized or near-optimal data selected from the relevant literature. In the calculation of the pressure distribution of the end seal gas film, the finite element method adaptable to the geometrical structure is adopted.