液压与气动2025，Vol.49Issue(2)：8-16,9.DOI:10.11832/j.issn.1000-4858.2025.02.002
考虑空化效应的逻辑阀压力损失分析及试验验证
Analysis and Experimental Verification of Pressure Loss in Logic Valves Considering Cavitation Effect
摘要
Abstract
In order to reduce the pressure loss of hydraulic control logic valve,improve the flow efficiency of the oil,a simulation model of the flow field in the logic valve is established based on CFD,and considering the influence of fluid cavitation.The flow characteristics of the hydraulic oil and the flow-pressure characteristics of the valve are analyzed,and the test is carried out.Finally,the influence of different structural parameters of valve port on the pressure loss is explored.The results show that when the inlet flow rate is greater than 60 L/min,the simulation results and test errors of whether to consider cavitation are 4.16％and 22.41％,respectively.The pressure loss can be reduced by using a smooth transition at the sharp edge,increasing the valve sleeve aperture and reducing the diameter of the valving element,which can provide reference for the optimal design of the logic valve.关键词
逻辑阀/计算流体力学/空化/压力损失/试验验证Key words
logic valve/CFD/cavitation/pressure loss/experimental verification分类
机械工程引用本文复制引用
向禹豪,胡桂荣,陈川,司国雷,吴泽华,杨丹..考虑空化效应的逻辑阀压力损失分析及试验验证[J].液压与气动,2025,49(2):8-16,9.基金项目
国家重点研发计划(2022YFC2805703) （2022YFC2805703）
