基于有限元的小型电磁阀阀座结构优化设计

Optimized Design of One Small-scale Solenoid Valve’s Seat Based on Finite Element Simulation

某轻质小型化电磁阀在工作过程中出现了实际行程大幅小于设计行程的现象,本文以电磁阀阀座为研究对象,应用Ansys有限元仿真分析软件对阀座进行了应力与形变分析。结果表明:在预紧力作用下,电磁阀阀座阀口处产生了明显的塑性变形,导致电磁阀的行程减小、流阻增大。作者对电磁阀阀座进行了结构优化,结合仿真计算与试验验证,改进后的电磁阀阀座形变明显变小,电磁阀的流阻和其他性能指标均满足设计要求,方案合理可行。

The displacement of one small-scale solenoid valve became smaller during working process,taking the solenoid valve’s seat as the research object,this article analyzed the strains and stresses of solenoid valve’s seat based on Ansys Finite Element Simulation software.The result shows:the solenoid valve’s seat produced plastic deformation under pre-tightening force.This caused the displacement of solenoid valve smaller and the flow resistance bigger.The author optimized the valve’s seat combining with simulation calculation and experimental verification.The deformation of the improved program became smaller significantly.The flow resistance and other performance parameter of the solenoid valve reached the design requirement.The improved program was reasonable and feasible.