面向多路阀结构拓扑设计的多工况综合性能评价  

Comprehensive Performance Evaluation of Multi-Way Valve for Topology Design of Groove Structure

作　　者：王安麟[1] 唐姜炜 张小路[1] WANG Anlin;TANG Jiangwei;ZHANG Xiaolu(School of Mechanical Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]同济大学机械与能源工程学院,上海201804

出　　处：《华南理工大学学报（自然科学版）》2018年第9期9-16,共8页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家重点研发计划项目(2017YFC07040)~~

摘　　要：针对开环条件下液压多路阀结构拓扑需满足多种工况下性能复合的流固耦合设计难题,本研究提出了面向多路阀结构拓扑设计的多工况综合性能评价方法.以液压挖掘机多路阀回转联为对象,将阀芯换向过渡过程分为微动、比例调速以及全开口节流3个开启区段.设定其阀芯节流槽结构参数为变量,分别以3个开启区段的性能为评价目标,构建了面向多路阀结构拓扑设计的多工况综合性能评价的多目标优化设计模型.在验证多路阀流场仿真结果与其台架实验结果基本一致的基础上,对上述优化模型计算结果进行仿真.结果表明,优化所得结构拓扑形态对应的稳态综合性能得到明显改善,说明本方法对于此类复杂工况条件下多路阀结构拓扑设计问题具有参考价值.Aiming at the problem of fluid-solid coupling topology design for the groove structure under the condition of open-loop condition which needs to meet the requirements of performance in a variety of operating conditions,the research proposed a comprehensive performance evaluation method for multi-way valve topology design of the groove structure.In this paper,the hydraulic excavator swing-valve is the object,the spool reversal process is divided into fretting,proportional speed control and full opening sections.This paper set the topology of the groove structure parameter as a design variable and set the performance evaluations of the three opening sections as a goal,and finally constructed the topology optimized design model of the groove structure for the comprehensive perfor-mance evaluation of multi-way valve which needs to meet the performance requirements in a variety of operating conditions.After verifying that the CFD simulation results of the multi-way valve are basically consistent with its experimental ones,the simulation ones of the above optimization model are simulated.The results show that the steady state comprehensive performance corresponding to the topology of the optimized structure is significantly improved,which indicates that the proposed method is effective for the topology design of multi-way structure which needs to meet the complex conditions and has the reference value.

关 键 词：多路阀 结构拓扑设计 多工况综合性能 多目标评价 

分 类 号：TH137.52[机械工程—机械制造及自动化]