小球式旋转直驱压力伺服阀动态特性分析优化

doi:10.7527/S1000-6893.2018.22143

材料工程与机械制造

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小球式旋转直驱压力伺服阀动态特性分析优化

陆亮¹, 夏飞燕¹, 訚耀保¹, 原佳阳¹, 方向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:2018-03-17 修回日期:2018-05-21 出版日期:2018-10-15 发布日期:2018-05-30
通讯作者: 訚耀保 E-mail:y-yin@tongji.edu.cn
基金资助:
国家自然科学基金（51605333，51775383）；上海航天科技创新基金资助项目（SAST2017093）；同济大学学科交叉项目（1370219261）

Dynamic analysis and optimization of ball-type rotary direct drive pressure servo valve

LU Liang¹, XIA Feiyan¹, YIN Yaobao¹, YUAN Jiayang¹, FANG Xiang²

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

Received:2018-03-17 Revised:2018-05-21 Online:2018-10-15 Published:2018-05-30
Supported by:
National Natural Science Foundation of China (51605333,51775383); Shanghai Aerospace Science and Technology Innovation Fund (SAST2017093); Interdisciplinary Project of Tongji University (1370219261)

摘要/Abstract

摘要： 针对在研的小球式旋转直驱压力伺服阀（Ball-type Rotary Direct Drive Pressure Servo Valve，BRDDPSV）阶跃响应超调量大、调整时间长等不稳定现象，建立了数学模型，分析了结构参数和电控方法对整阀动态特性的影响。理论分析表明：结构参数方面，减小阀芯直径、减小滑阀负遮盖量或将小球-柱形孔运动副改为小过盈配合均可提高整阀响应的稳定性；控制方法方面，在原有PI控制的基础上，采用积分分离可有效抑制控制压力动态响应的超调量，增加动压反馈校正可有效缩短控制压力动态响应的调整时间。优化选取结构参数和电控方法后，进行样机试验，整阀控制压力阶跃响应的超调量小于0.5 MPa（系统压力21 MPa），调整时间约30 ms，能够满足飞机刹车压力伺服阀的使用需求。

关键词: 旋转直驱, 压力伺服阀, 积分分离, 动压反馈, 飞机刹车

Abstract: To solve the problem of large overshoot and long adjustment time of dynamic pressure response of a new type Ball-type Rotary Direct Dive Pressure Servo Valve (BRDDPSV), a mathematical model is developed based on the classical control theory. The main structure parameters and electronic control method that affect the stability of BRDDPSV are analyzed. Theoretical analysis shows that the response stability of the BRDDPSV can be improved by properly adjusting the structural parameters, including reducing the spool diameter, and decreasing the negative cover of the valve port or changing the small ball and cylindrical hole into a slight interference fit. With respect to the control method, on the basis of the original PI control, large overshoot of dynamic response can be inhibited through integral separation, and the adjustment time of the dynamic response can be shortened through dynamic pressure feedback correction. Finally, semi-physical simulation experiments show that with proper structural parameters and electrical control methods, the pressure overshoot can be controlled to be less than 0.5 MPa (system pressure was 21 MPa), and the response adjustment time can be controlled within 30 ms theoretically and experimentally. It can meet the requirements of aircraft brake pressure servo valve.

Key words: rotary direct drive, pressure servo valve, integral separation, dynamic pressure feedback, aircraft brake

中图分类号:

陆亮, 夏飞燕, 訚耀保, 原佳阳, 方向. 小球式旋转直驱压力伺服阀动态特性分析优化[J]. 航空学报, 2018, 39(10): 422143-422143.

LU Liang, XIA Feiyan, YIN Yaobao, YUAN Jiayang, FANG Xiang. Dynamic analysis and optimization of ball-type rotary direct drive pressure servo valve[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(10): 422143-422143.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

小球式旋转直驱压力伺服阀动态特性分析优化

Dynamic analysis and optimization of ball-type rotary direct drive pressure servo valve

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