旋转直接驱动式电液压力伺服阀机理及特性分析

doi:10.3901/JME.2018.16.186

机械工程学报 ›› 2018, Vol. 54 ›› Issue (16): 186-194.doi: 10.3901/JME.2018.16.186

旋转直接驱动式电液压力伺服阀机理及特性分析

原佳阳¹, 訚耀保¹, 陆亮¹, 方向², 郭生荣²

1. 同济大学机械与能源工程学院上海 200092;
2. 南京机电液压工程研究中心、航空机电系统综合航空科技重点实验室南京 210061

收稿日期:2017-09-07 修回日期:2017-12-20 出版日期:2018-08-20 发布日期:2018-08-20
通讯作者: 陆亮(通信作者),男,1983年出生,博士,助理教授。主要从事激振流体力学理论、航空伺服、海上风电机电液控制技术研究。E-mail:luliang829@tongji.edu.cn
作者简介:原佳阳,男,1992年出生,博士研究生。主要研究方向为流体传动控制,电液伺服元件耐久性分析。E-mail:1410292@tongji.edu.cn;訚耀保,男,1965年出生,博士,教授,博士研究生导师。主要研究方向为极限环境下的液压与气动基础理论,飞行器能源与舵机和高速气动控制。E-mail:y-yin@tongji.edu.cn
基金资助:
国家自然科学基金资助（51475332，51605333）和流体动力与机电系统国家重点实验室开放基金（GZKF-201518）资助项目。

Analysis of Rotary Direct Drive Electro-hydraulic Pressure Control Servo Valve

YUAN Jiayang¹, YIN Yaobao¹, LU Liang¹, FANG Xiang², GUO Shengrong²

1. College of Mechanical Engineering, Tongji University, Shanghai 200092;
2. Aviation Key Laboratory of science and Technology on Aero Electromechanical System Integration, Nanjing Mechatronic and Hydraulic Engineering Research Centre, Nanjing 210061

Received:2017-09-07 Revised:2017-12-20 Online:2018-08-20 Published:2018-08-20

摘要/Abstract

摘要： 提出并设计出一种旋转直接驱动电液压力伺服阀（Rotary direct drive electro-hydraulic pressure control servo valve，RDDPV），该阀通过偏心驱动机构将力矩电机旋转运动转化为功率阀芯的直线运动，进而改变进回油窗口节流面积比，输出相应负载压力；通过电机位置和输出压力的电反馈闭环实现伺服控制。建立RDDPV非线性数学模型，研究了偏心驱动机构参数对伺服阀动静态特性的影响，确定了阀的主要结构参数。根据理论分析结果制作RDDPV样机，并在试验台上测试了基本特性，试验结果与理论结果一致，表明该阀具有较高的动静态性能，可应用于飞机防滑刹车等稳准快性能要求较高的压力伺服控制系统。

关键词: 电液压力伺服阀, 非线性数学模型, 偏心驱动机构, 旋转直接驱动, 样机

Abstract: A rotary direct drive electro-hydraulic pressure control servo valve(RDDPV) is proposed and designed. This new-type servo valve converts the rotary motion of torque motor into linear motion of spool by the eccentric drive mechanism, then the throttle area ratio of the inlet and outlet is changed and corresponding pressure is output, and the servo control is achieved by the electrical feedback loop of the motor position and output pressure. The nonlinear mathematical model of RDDPV is established to study the influence of structure parameters, especially eccentric mechanism parameters, on the static and dynamic characteristics of the servo valve, and the main structural parameters of the valve were determined. The RDDPV prototype was manufactured and its basic characteristics were tested on test bed. The results showed that the valve had high dynamic and static performance, and it could be applied to those pressure servo control systems that required high performance in stability, accuracy and speed, such as the anti-skid brake system of airplane.

Key words: eccentric drive mechanism, electro-hydraulic pressure control servo valve, nonlinear mathematical model, prototype, rotary direct drive

中图分类号:

TH137

原佳阳, 訚耀保, 陆亮, 方向, 郭生荣. 旋转直接驱动式电液压力伺服阀机理及特性分析[J]. 机械工程学报, 2018, 54(16): 186-194.

YUAN Jiayang, YIN Yaobao, LU Liang, FANG Xiang, GUO Shengrong. Analysis of Rotary Direct Drive Electro-hydraulic Pressure Control Servo Valve[J]. Journal of Mechanical Engineering, 2018, 54(16): 186-194.

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旋转直接驱动式电液压力伺服阀机理及特性分析

Analysis of Rotary Direct Drive Electro-hydraulic Pressure Control Servo Valve

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