液压与气动2026，Vol.50Issue(6)：69-76,8.DOI:10.11832/j.issn.1000-4858.2026.06.008
考虑流固耦合作用下电液伺服阀滑阀形变特性分析
Analysis of Deformation Characteristics of Electro-hydraulic Servo Valve Spool Under Action of Fluid-structure Interaction
摘要
Abstract
As the core component of a hydraulic control system,the spool valve stage of an electro-hydraulic servo valve deforms under multi-physics coupling,which changes the clearance between components and further affects the valve performance.To explore the structural deformation characteristics of the spool valve stage under fluid-structure interaction at different opening degrees,a 3D simulation model is established,and the one-way fluid-structure interaction numerical simulation is adopted to systematically study the deformation laws of the valve spool,valve body and valve sleeve within different opening degree ranges,while the dynamic change of the matching clearance is quantified by a radar chart.The simulation results show that when the valve port pressure difference is 7 MPa,the maximum deformation of the valve body reaches 11 μm and is concentrated at the oil return port,and the maximum deformation of the valve spool is 1.86 μm and that of the valve sleeve is 2.32 μm,both concentrated at the oil inlet port;with the increase of opening degree,the valve spool and valve sleeve show an inward compression trend,while the valve body shows an outward expansion trend.This study reveals the structural deformation characteristics and dynamic clearance changes of the spool valve stage under different opening degree conditions and provides an important basis for the structural optimization design of electro-hydraulic servo valves.关键词
电液伺服阀/滑阀/流固耦合/有限元仿真Key words
electro-hydraulic servo valve/spool valve/fluid-structure interaction/finite element simulation分类
机械制造引用本文复制引用
高伟,李文涵,曹晓明,韩新龙,高翔,陈立娟..考虑流固耦合作用下电液伺服阀滑阀形变特性分析[J].液压与气动,2026,50(6):69-76,8.基金项目
国家科技重大专项(G24002) （G24002）
