超高压液压缸活塞间隙密封的数值模拟  

Numerical Simulation of Seal Leakage of Piston in Ultra-High Pressure Oil Cylinder

作　　者：田小静[1] 李慧[1] 董华军[1] 谭晓东[1] 

机构地区：[1]大连交通大学机械工程学院,辽宁大连116028

出　　处：《大连交通大学学报》2013年第4期61-64,共4页Journal of Dalian Jiaotong University

基　　金：辽宁省教育厅高等学校科学研究计划资助项目(2011220051)

摘　　要：基于Fluent软件,应用动网格及UDF技术对间隙密封活塞运动过程进行数值模拟.通过动网格的生成与消亡,解决活塞与缸筒间相对运动所导致的计算区域瞬时变化的问题.得到密封间隙一定的条件下,拉伸液压缸压力及速度矢量随时间变化的仿真结果.为确定间隙密封的密封间隙值提供了依据.Based on the fluent software and using dynamic mesh and UDF technology, the numerical simulation of learance sealing piston motion process is conducted. Through generation and disappearance of the dynamic grid, the problem of computing regional instantaneous variation caused by the relative movement between piston and cylinder is solved. The simulation results of tensile hydraulic cylinder pressure and the vector change over time are obtained on the condition of certain sealing clearance, which provides sound basis for determining the clearance seal clearance values.

关 键 词：超高压液压缸 间隙密封 FLUENT 动网格 UDF 

分 类 号：TH137.51[机械工程—机械制造及自动化]