摘要
通过对高压密封腔内轴—密封环形成的密封间隙内液体泄漏量和压力分布进行计算与理论分析 ,探讨高压液体弹簧密封系统的结构设计和力学分析方法。通过有限元法和差分方法相结合的液固耦合计算 ,获得结构的最终间隙和压力分布曲线 ,达到为设计提供参考的目的。整个计算程序在有限元软件ANSYS平台上编译进行 ,计算过程简洁、快速 ,符合复杂的工程设计要求。计算结果表明 ,文中提出的设计方法是可行的、有效的。同时 ,对密封环的结构形式进行了讨论 ,对比两种形状密封环的变形特点与材料、尺寸的关系 。
Calculation and theoretical analysis are presented concerning liquid leakage rate and pressure distribute in seal gap, which formed by seal cavity, axis and seal ring under high pressure. The structural design and mechanical analysis method of sealing system of high pressure liquid spring are discussed in this paper. Final gap between the axis and seal ring and pressure distribution curves are obtained through liquid solid coupling calculation that combined the finite element method and differential method to achieve design destination. The calculation program is compiled in finite element software ANSYS, and the procedure is compact and fast, so it can satisfy the requirement of complex engineering design. It is shown that the design method of this paper is feasible and effective. At the same time, the structural form of seal ring is discussed and the relationship among deformation characteristics, materials and size of seal ring are compared. Some valuable proposals are presented.
出处
《机械强度》
CAS
CSCD
北大核心
2004年第5期556-559,共4页
Journal of Mechanical Strength
关键词
高压密封
液固耦合
有限元分析
High pressure sealing system
Liquid solid coupling
Finite element analysis
