机械制造与自动化2025，Vol.54Issue(2)：103-108,6.DOI:10.19344/j.cnki.issn1671-5276.2025.02.020
基于重要度公差叠加分析的固定球阀密封结构装配优化研究
Research on Assembly Optimization of Sealing Structure of Fixed Ball Valve Based on Importance Tolerance Superposition Analysis
摘要
Abstract
To improve the poor sealing performance of fixed ball valve after assembly,the seat structure of Q347F-150Lb fixed ball valve taken as the object of exploration,the TolAnalyst plug-in on the Solidworks platform and the multi-objective optimization design method are adopted for reserch and analysis.With the importance degree as the constraint,the maximum size after assembly,the opening and closing torque,etc.as the objective functions,and the position tolerance and shape tolerance as the optimal design variables,the finite element model before and after optimization was established to analyze the contact pressure,stress and strain.The results show that the effect of optimizing the position tolerance is better than the shape tolerance,and the tolerance of the key position can be increased.Based on the finite element simulation method,the evolution law of the contact pressure,equivalent stress and equivalent strain of the sealing surface during the opening of the discontinuous contact seal structure is clarified.Based on the TolAnalyst plug-in,the tolerance analysis results for important features can be obtained quickly and provide a theoretical basis for the optimization of tolerance assignments.关键词
SolidWorks/计算机辅助公差设计/固定球阀/公差分析/优化设计Key words
SolidWorks/computer-aided tolerancing design/fixed ball valves/tolerance analysis/design optimization分类
机械制造引用本文复制引用
黄晓云,夏胜建,全军,厉陈足,戴雄浩,杨建..基于重要度公差叠加分析的固定球阀密封结构装配优化研究[J].机械制造与自动化,2025,54(2):103-108,6.基金项目
浙江省重点高新技术产品开发项目(浙经信技术[2021]111号) （浙经信技术[2021]111号）
