机电工程技术2026，Vol.55Issue(4)：27-33,7.DOI:10.3969/j.issn.1009-9492.2026.04.005
C形金属环密封特性及其结构优化研究
Research on the Sealing Characteristics of C-shaped Metal Rings and Their Structural Optimization
摘要
Abstract
The sealing performance of downhole high-temperature safety valves depends on the mechanical properties of the metal C-shaped sealing ring,a key component,and its structural parameters have a significant impact on the sealing.The influence law of the matching changes in the inner and outer diameters of the C-shaped sealing ring on the inner and outer sealing contact stresses is investigated,and based on this,an optimization model for the structural parameters of the sealing ring is established.To overcome the limitations of single-factor analysis and manual modeling in traditional research,a set of automated joint simulation models based on Python,SolidWorks,and ANSYS is constructed,and high-throughput analysis is carried out on the variable structural parameters.Based on the finite element analysis results of 120 groups of full-factorial experiments,the coupling mechanism of the inner and outer diameters on the bilateral contact stresses and the stress difference is revealed.Accordingly,a stress prediction model for the contact stress on the piston rod side and the piston sleeve side is established.Further,by introducing stress equilibrium constraints,the combination criteria for the inner and outer diameter parameters to achieve the optimal bilateral stress equilibrium are determined,and an empirical formula for balancing the contact stress is provided.关键词
C形密封环/有限元分析/参数优化/优化模型Key words
C-shaped sealing ring/finite element analysis/parameter optimization/optimization model分类
机械制造引用本文复制引用
白鹏巨,魏文澜,章娅菲,李玉强,姚磊,刘森..C形金属环密封特性及其结构优化研究[J].机电工程技术,2026,55(4):27-33,7.基金项目
陕西省创新能力支撑计划科技创新团队项目(2025RS-CXTD-037) （2025RS-CXTD-037）
