电液伺服阀阀套组件装配应力有限元分析  

Analysis of the Assembly Stress of Sleeve of Electro-hydraulic Servovalve Based on FEM

作　　者：訚耀保[1] 黄伟达[1] 李玲[1] 张曦[1] 

机构地区：[1]同济大学机械工程学院,上海200092

出　　处：《液压气动与密封》2010年第12期28-32,共5页Hydraulics Pneumatics & Seals

基　　金：国家"863"高科技计划资助项目(2007AA05Z119);航空科学基金资助项目(20090738003);国家自然科学基金资助项目(50775161)

摘　　要：利用非线性有限元软件MARC对某力反馈电液伺服阀阀套组件装配应力进行有限元仿真计算,采用动态和静态两种有限元接触分析方法,分别模拟过盈装配的压力压装和温差组装两种组装方法。分析了压装过程中阀套装配应力随时间变化过程,配合过盈量、回油阻尼孔件最终安装位置对接触应力的影响,以及阀套受装配应力影响最大的3个部位。结果对减小阀套应力变形、改进加工和装配工艺具有参考意义。By using the nonlinear finite element software MARC,the dynamic and static methods are put forward in this paper to simulate the contact stress on the interference fitting surfaces of the force feedback electro-hydraulic servovalve valve sleeve component,simulating press assembly and temperature assembly of the interference assembly.The two methods are applied to study the assembly stress change over time,the effect of the amount of interference and the final installation location of the damping hole component to the contact stress are analyzed.The results play a reference role in reducing the deformation of the valve sleeve,improving manufacturing process and assembly process technology.

关 键 词：电液伺服阀 过盈配合 接触应力 非线性有限元 

分 类 号：TH138.52[机械工程—机械制造及自动化]