河北水利电力学院学报2026，Vol.36Issue(3)：42-46,5.DOI:10.16046/j.cnki.issn2096-5680.2026.03.007
水电机组调速器液压系统O型圈密封的可靠性分析
Reliability Analysis of O-ring Sealing in Hydraulic System of Hydroelectric Power Unit Governor
摘要
Abstract
This article establishes a two-dimensional axisymmetric finite element model of the O-ring sealing structure and uses a hyperelastic material constitutive model to analyze the Von Mises stress and contact pressure of O-rings under different radial clearance conditions,under assembly compression and working oil pressure conditions,in order to analyze the reliability of O-rings.The results indicate that the radial clearance has no significant effect on the sealing performance when the oil pressure is low;After the oil pressure increases,the larger the radial clearance,the easier it is for the O-ring to be squeezed into the clearance,causing stress concentration and contact pressure drop,which poses a risk of O-ring leakage and damage;If the radial clearance is too small,the installation stress of the O-ring will be too high,and it is prone to permanent deformation in the long run.Based on the above research,we provide scientific basis for the reasonable installation and use of O-ring seals.关键词
水电机组/调速器/O 型圈/可靠性Key words
hydroelectric units/speed controller/O-ring/reliability分类
建筑与水利引用本文复制引用
陈铁华,杨智文,董世豪,张旭,王奇超..水电机组调速器液压系统O型圈密封的可靠性分析[J].河北水利电力学院学报,2026,36(3):42-46,5.基金项目
吉林省科技厅重点研发项目(20230203154SF) （20230203154SF）
国网吉林省电力有限公司松原供电公司项目(SGJLSYO0KJS2200906) （SGJLSYO0KJS2200906）
