液压与气动2026，Vol.50Issue(1)：32-42,11.DOI:10.11832/j.issn.1000-4858.2026.01.004
基于熵产理论的组合节流槽滑阀结构优化设计
Structural Optimization Design of Sliding Valve with Composite Throttle Grooves Based on Entropy Production Theory
摘要
Abstract
The structural parameters of the sliding valve with V+U combined throttle groove are optimized based on entropy production theory and response surface methodology,aiming to reduce energy loss in hydraulic systems and improve flow control performance.The numerical simulations are conducted to analyze entropy production distribution,velocity field and pressure field characteristics at different valve openings,with 40%opening being identified as the typical working condition.The Plackett-Burma test is used to screen the three key influencing factors that significantly affect total entropy production:U-groove length,V-groove depth and V-groove length.Regression equations between the three factors and total entropy production as well as flow gain are established using steepest ascent and response surface methodologies.The interaction effects of the influencing factors are analyzed to obtain the optimal structural parameter combination for the V+U combined throttle groove.The results show that when the U-groove length is 2.417 mm,the V-groove length is 1.899 mm and the V-groove depth is 0.916 mm,the total entropy production is reduced from 4590.39 mW/K before optimization to 793 mW/K.Meanwhile,the flow gain remains within a reasonable range,and the model prediction error is less than 5%.The conclusions provide theoretical reference for the study of energy loss in V+U combined throttle grooves.关键词
熵产理论/V+U形节流槽滑阀/流量增益/响应面法Key words
entropy production theory/sliding valve with V+U combined throttle groove/flow gain/response surface methodology分类
机械制造引用本文复制引用
张立强,马园园,茹常旭,隆丽蓉,陈国雪..基于熵产理论的组合节流槽滑阀结构优化设计[J].液压与气动,2026,50(1):32-42,11.基金项目
国家自然科学基金(52165007) （52165007）
