面向液压滑阀卡滞问题的健壮性设计

上海交通大学学报（自然版） ›› 2011, Vol. 45 ›› Issue (11): 1637-1642.

面向液压滑阀卡滞问题的健壮性设计

王安麟，董亚宁，周鹏举，吴小锋，周成林

(同济大学机械工程学院，上海 201804)

收稿日期:2010-10-03 出版日期:2011-11-30 发布日期:2011-11-30

Robust Design Method for the Seizure Problem of Hydraulic Slide Valve

(College of Mechanical Engineering, Tongji Universty, Shanghai 201804, China)

Received:2010-10-03 Online:2011-11-30 Published:2011-11-30

摘要/Abstract

摘要： 为了解决由黏性发热引起的液压滑阀卡滞问题，综合液压滑阀结构的流固热耦合解析与多学科优化基础，提出面向液压滑阀卡滞问题的健壮性设计方法.即采取顺序耦合分析方式，在液压滑阀结构流固热耦合下，通过流体有限元获得阀芯变形引起液压滑阀卡滞的敏感因子，且以响应面函数模型表达阀芯变形与敏感因子之间的函数关系；对于外界随机变化因子，应用6σ法则优化可设计因子来减小随机因子对性能的影响，并以蒙特卡罗随机分析方法验证设计后阀芯变形对外界因子随机变化的健壮性.解析实例表明，阀芯结构、滑阀开度、负载流量和介质温度是引起液压滑阀卡滞的敏感性因素，健壮性设计方法在滑阀卡滞多因子复杂设计问题中明显优于传统设计方法.

关键词: 滑阀卡滞, 流固热耦合, 黏性发热, 健壮性设计

Abstract: For the purpose of solving seizure problem of hydraulic slide valve caused by viscous heating, a robustness design method was put forward basing on the methods of airflow-coal-heat coupled of the hydraulic slide valve structure and multidisciplinary design optimization. Using ordered coupling style, under the airflow-coal-heat coupled of the hydraulic slide valve structure, sensitive factors of seizure of hydraulic slide valve caused by the spool deformation are obtained by the flow finite element method. And, the response relation between the spool deformation and sensitive factors is expressed by the response surface function model.Then, the spool structure of the hydraulic slide valve is designed by the 6σ design method and the robustness of the designed spool is verified by Monte Carlo method.The example shows the spool structure,placket of slide valve, the load flow rate,the media temperature are the sensitive factors that give rise to the seizure of hydraulic slide valve. Robust design method is better than traditional design methods for the seizure of slide valve and multi-factor complex problems.

Key words: seizure of slide valve, airflowcoalheat coupled, viscous heating, robustness design method

中图分类号:

TH173.52

王安麟，董亚宁，周鹏举，吴小锋，周成林. 面向液压滑阀卡滞问题的健壮性设计[J]. 上海交通大学学报（自然版）, 2011, 45(11): 1637-1642.

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