永磁式高速开关阀多目标优化设计  

Multi-objective Optimization Design of Permanent Magnet High-Speed On-Off Valve

作　　者：白岩松 孔祥浩 郝越 赵四海[1] BAI Yansong;KONG Xianghao;HAO Yue;ZHAO Sihai(School of Mechanical and Electrical Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)机械与电气工程学院,北京100083

出　　处：《机床与液压》2025年第6期111-117,共7页Machine Tool & Hydraulics

摘　　要：高速开关阀是数字液压系统中重要的控制元件,其控制精度取决于其响应速度。针对高速开关阀响应慢的问题,提出一种新型高速开关阀,并利用等效磁路法建立电磁铁的数学模型,通过与有限元模拟结果进行比较,计算误差在10%以内。考虑液动力并对阀芯反力进行建模,使用微分方程计算阀芯的运动时间和位移。基于多目标优化智能算法NSGA-II对驱动先导阀的电磁阀模型进行动态性能优化。对响应时间和输出力进行两目标优化,得到Pareto最优解集。最后搭建实验平台测试阀的动态特性。结果表明:在31.5 MPa的工作压力下,该开关阀开启时间约为12 ms,关闭时间约为11 ms。The high-speed on-off valve is a crucial control component in the digital hydraulic systems,and its control accuracy depends on its response speed.In response to the issue of slow response of high-speed on-off valves,a new type of high-speed on-off valve was proposed.By employing the equivalent magnetic circuit method,a mathematical model of the solenoid was established.Through comparison with the results of finite element simulation,the calculation error remained within 10%.Considering the fluid power,the counterforce of the valve core was modeled,and the operating time and displacement of the valve core were computed using the differential equations.Based on the multi-objective optimization algorithm NSGA-II,the dynamic performance optimization of the solenoid valve model driving the pilot valve was carried out.The response time and output force were optimized to obtain the Pareto optimal solution set.Finally,an experimental platform was built to test the dynamic characteristics of the valve.The results show that under the working pressure of 31.5 MPa,the opening time of the on/off valve is approximately 12 ms and the closing time is roughly 11 ms.

关 键 词：高速开关阀 多目标优化设计 PARETO最优解集 

分 类 号：TH137.52[机械工程—机械制造及自动化]