电磁螺纹插装阀换向驱动特性仿真研究  

Simulation Research on Reversing Drive Characteristics of Solenoid Screw-in Cartridge Valve

作　　者：胥敏 王卓锋 米智强 XU Min;WANG Zhuo-feng;MI Zhi-qiang(College of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学能源与动力工程学院,甘肃兰州730050

出　　处：《液压气动与密封》2023年第5期72-76,共5页Hydraulics Pneumatics & Seals

基　　金：国家自然科学基金(52165007)。

摘　　要：螺纹插装式电磁换向阀在换向过程中阀芯主要受到电磁驱动力、液压负载力、弹簧力和摩擦力的作用。为了更加准确的模拟阀芯换向移动过程,将电磁驱动力、弹簧力及摩擦力的函数关系写入用户自定义函数UDF,在Fluent软件中实现电磁、液压之间的耦合计算。UDF实时计算各项力数值大小并在牛顿第二定律基础上得出该时刻阀芯运动速度,结合滑移网格法控制区域网格运动实现瞬态流场计算,得到阀芯运动更为准确的计算结果,在此基础上对螺纹插装阀换向过程进行分析。The spool of the screw-in cartridge solenoid directional valve is mainly affected by electromagnetic driving force,hydraulic load force,spring force and friction force during the reversing process.In order to more accurately simulate the spool reversing movement process,the functions of electromagnetic driving force,spring force and friction force are written into the user-defined function UDF,and the coupling calculation between electromagnetic and hydraulic is realized in Fluent software.UDF calculates the value of each force in real time and obtains the velocity of the spool movement at this time based on Newton's second law.Combined with the sliding mesh method to control the regional grid movement to realize the transient flow field calculation,more accurate calculation results of the spool movement are obtained.On this basis,the reversing process of the screw-in cartridge valve is analyzed.

关 键 词：螺纹插装阀 滑移网格 电磁驱动力 液压负载力 

分 类 号：TH137[机械工程—机械制造及自动化]