液压与气动Issue(12)：60-64,5.DOI:10.11832/j.issn.1000-4858.2017.12.010
基于动网格的液压滑阀流固耦合分析
Fluid-structure Interaction Analysis Based on Dynamic Mesh for Hydraulic Spool Valve
摘要
Abstract
A three-dimensional model of hydraulic spool valve for the dynamic simulation is established to obtain motion trail,stress distribution and deformation of the spool under the combined action of spring force,driving force and flow force by the fluid-structure interaction analysis method based on the dynamic mesh.The results show that the spool vibrates slightly after reaching the steady state,and a numerical simulation method for analyzing the opening process of hydraulic spool valve is provided.The radial deformation of the spool mainly occurs on the rod and the deformation fluctuates slightly with time.Because of the hydraulic impact,the spool produces a large deformation at the entrance and generates the stress concentration at the connection between the shoulder and the stem.The parameters' values of numerical simulation obtained by CFD are consistent with the theoretical values,and the error is within an acceptable range,and the reliability of this numerical analysis method is proved.关键词
液压滑阀/动网格/流固耦合/动态仿真Key words
hydraulic spool valve/dynamic mesh/fluid-structure interaction/dynamic simulation分类
机械制造引用本文复制引用
张顺锋,张胜,王强,何晓晖,崔言伟..基于动网格的液压滑阀流固耦合分析[J].液压与气动,2017,(12):60-64,5.基金项目
国家自然科学基金(51175511) （51175511）
