基于CFD的某滑阀阀芯动态特性研究  

Transient Properties of the Hydraulic Spool Valve Based on CFD

作　　者：张胜[1] 何晓晖[1] 王强[1] 王新文[1] 

机构地区：[1]解放军理工大学野战工程学院,江苏南京210007

出　　处：《装备制造技术》2016年第12期28-30,40,共4页Equipment Manufacturing Technology

摘　　要：基于CFD和动网格技术,建立了具有圆弧倒角的液压滑阀动态特性分析的三维数值模型,对其在弹簧力、驱动力及流体力共同作用下的开启过程进行了动态模拟。分析了不同弹簧刚度下,液压滑阀开启过程中阀芯位移、所受的冯.米塞斯应力和瞬态液动力的变化情况,得到了弹簧刚度对液压滑阀阀开启过程中阀芯位移、所受的冯.米塞斯应力和瞬态液动力的影响规律,为液压滑阀的设计及优化提供依据。The three-dimensional numerical model was established to obtain transient properties of hydraulic spool valve with circular arc chamfering based on CFD and dynamic mesh technology. Focused on the opening process of hydraulic spool valve, the characteristics are determined by the spring, driving and flow force. Transient displacement,von mises and flow force were analyzed in this opening process with different spring force. The influence laws of spring stiffness on displacement,von mises and flow force are analyzed in the opening process as well. The results provide basis for hydraulic spool valve＇s design and optimization.

关 键 词：CFD 液压滑阀 动网格 弹簧刚度 

分 类 号：TH137[机械工程—机械制造及自动化]