液压与气动2025，Vol.49Issue(3)：26-33,8.DOI:10.11832/j.issn.1000-4858.2025.03.004
外流式滑阀流场仿真及其结构优化
Simulation of Flow Field and Structure Optimization of External Flow Spool Valve
摘要
Abstract
Aimed at the problem that it is difficult to accurately control the spool valve under the influence of flow force,the internal flow field of the spool valve is simulated by using Fluent software,and the influence of the opening and flow rate changes on the pressure distribution of the spool wall is analyzed and verified by experiments.From the point of view of balancing the force on the wall surface of the spool,the optimized structure of the spool is proposed.The results show that he pressure distribution on the wall of the external flow valve calculated by simulation is the same as the experimental results.The radial pressure distribution on the inlet wall is basically equal,while the pressure distribution on the outlet wall is large at the valve root and small at the orifice.The peak value of wall pressure increases with the increase of flow rate and decreases with the increase of the opening of the valve port.The steady-state flow force is caused by the uneven pressure integral of the wall caused by the oil flow.The optimized spool structure can effectively reduce the flow force,and the average flow force compensation effect of different flow rates can reach 75%.关键词
滑阀/压力分布/实验验证/稳态液动力/液动力补偿/结构优化Key words
spool valve/pressure distribution/experiment verification/steady-state flow force/flow force compensation/structure improvement分类
机械工程引用本文复制引用
杨国琦,刘赫,赵星宇,葛磊,权龙..外流式滑阀流场仿真及其结构优化[J].液压与气动,2025,49(3):26-33,8.基金项目
国家自然科学基金(52275063) （52275063）
