| 新型负载口独立控制阀的设计与仿真研究 |
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| 引用本文： | 张国泰,高英杰,翟畅,张苏远,常飞翔,朱士琦.新型负载口独立控制阀的设计与仿真研究[J].液压与气动,2018,0(10):15-21. |
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| 作者姓名： | 张国泰 高英杰 翟畅 张苏远 常飞翔 朱士琦 |
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| 作者单位： | 燕山大学机械工程学院， 河北秦皇岛066000 |
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| 基金项目： | 国家重点研发计划（SQ2016YFSF060248） |
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| 摘 要： | 针对现有负载口独立控制系统中流量控制技术成本高、应用少等问题，设计了一种带阀后压差补偿的负载口独立控制阀。采用二级结构，将A形半桥应用到主阀的先导控制。研究中，根据阀的结构特点对其进行数学建模，通过合理假设推导出电闭环控制时的传递函数并进行理论分析。通过传统计算的方法对该阀进行结构参数设计，基于阀口迁移理论设计了主阀U形节流槽，采用矩形窗口的先导半桥控制，流量低，压力灵敏度也较大。进一步在AMESim平台上建立电闭环阀的仿真模型，对其动静态特性进行仿真研究。
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| 关 键 词： | 负载口独立控制 压差补偿 A形半桥 电闭环控制 |
| 收稿时间： | 2018-06-07 |
Design and Simulation Research for New Independent Metering Control Valve |
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| ZHANG Guo-tai,GAO Ying-jie,ZHAI Chang,ZHANG Su-yuan,CHANG Fei-xiang,ZHU Shi-qi.Design and Simulation Research for New Independent Metering Control Valve[J].Chinese Hydraulics & Pneumatics,2018,0(10):15-21. |
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| Authors: | ZHANG Guo-tai GAO Ying-jie ZHAI Chang ZHANG Su-yuan CHANG Fei-xiang ZHU Shi-qi |
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| Affiliation: | School of Mechainal Engineering, Yanshan University, Qinhuangdao, Hebei066000 |
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| Abstract: | To solve problems of high cost and less application for flow control technology in system with separate controls of actuator ports, a new independent metering valve with downstream compensation is designed. An A-type hydraulic half bridge is applied to pilot control of main valve. A mathematical model is established according to valves structure characteristics. A transfer function of electric closed-loop valve is derived with help of reasonable hypothesis, and theoretical analysis is carried out. The valve structural parameters are designed by the method of traditional calculation. The U-shaped throttling groove of main valve is designed according to the theory of shift of orifice location. A pilot valve with rectangular window is characterized by less flow and larger pressure gain. Then a simulation model of the hydraulic system is built on the AMESim platform, and the static and dynamic characteristics are analyzed. |
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