中国机械工程Issue(15)：2030-2035,2040,7.DOI:10.3969/j.issn.1004132X.2015.15.008
液压换向滑阀内部结构的健壮性设计
Robust Design of Hydraulic Slide Valve Internal Structure
摘要
Abstract
In order to optimize the hydraulic valve controlled factors to reduce the sensitivity of valve opening or closing operation performances to the noise factors,and to improve the reliability and stability of hydraulic valve,a robust design method was put forward for hydraulic valves.The dynamic characteristics of inner fluid were simulated when hydraulic valve was opening or closing based on CFD method.Effects of valve inner flow structure parameters,the spool movement speed,valve oil inG let and outlet pressure difference on transient flow force were analyzed,then the quantitative relationG ship among the transient flow force and various parameters was acquired by using the design of experiG ment method and response surface function method.Finally,the internal flow structure parameters of slide valve were set as the design variables,spool movement speed and pressure difference between inG let and outlet were set as the noise factors which were uncontrollable,transient flow force in hydraulic slide valve obeyed normal distribution and variances minimization was set as the target,a robust design of slide valve faced to its operation performance was executed.Results show that,the effects of noise factors on transient flow force are reduced by optimizing the structure parameters.关键词
液压滑阀/瞬态液动力/计算流体动力学/响应面函数/健壮性Key words
hydraulic slide valve/transient flow force/compute fluid dynamics (CFD)/response surface function/robustness分类
机械制造引用本文复制引用
吴小锋,干为民,刘春节,王晓军..液压换向滑阀内部结构的健壮性设计[J].中国机械工程,2015,(15):2030-2035,2040,7.基金项目
国家自然科学基金资助项目(51305049) （51305049）
江苏省教育厅自然科学基金资助项目(13KJD460003) （13KJD460003）
