先导式高速开关阀的优化设计与动态仿真  

Optimization design and dynamic simulation of piloted high speed on-off valve

作　　者：孔晓武[1] 阮晓芳[2] 

机构地区：[1]浙江大学流体传动及控制国家重点实验室,浙江杭州310027 [2]浙江广播电视大学信息与工程学院,浙江杭州310030

出　　处：《机电工程》2011年第7期789-792,797,共5页Journal of Mechanical & Electrical Engineering

基　　金：教育部博士点基金资助项目(20070335130)

摘　　要：针对一种主阀为滑阀结构的先导式大流量高速开关阀控制腔面积的优化设计问题,首先对主阀芯进行了动力学分析,得到先导阀与主阀之间参数匹配的优化目标函数,依据该目标函数对一个具体的先导式大流量高速开关阀的控制腔面积进行优化设计。为验证理论优化的结果,基于AMESIM平台建立了该先导式大流量高速开关阀的精确仿真模型,通过动态仿真对控制腔面积进行优化,所得结果与理论分析优化的结果基本一致。研究结果表明,主阀芯换向时间与控制腔面积之间为非单调关系,存在一最佳控制腔面积使主阀换向时间最短。Aiming at optimization design on the control area of a piloted high speed on-off valve, dynamic analysis was performed to a piloted high speed on-off valve with a slide main valve, and the objective function was put forward to optimizing parametes of the main valve. As an example, a specific piloted large flow on-off valve was optimized according to the objecting function. In order to evaluation the performance of the optimized valve, a precision simulation model was established by AMESIM. Empirical method was applied to optimize the parameters of main valve based on the simulation model. The results obtained by simulation are consistent with the theory analyzed results. The results in- dicate that there exists an optimum control area with which the shortest switching time of main spool could be achieved.

关 键 词：先导式 高速开关阀 优化设计 动态仿真 

分 类 号：TH137.52[机械工程—机械制造及自动化] TH122