机载泵阀协调控制EHA的设计与仿真分析  

Design and Analysis of Airborne Pump and Valve Coordinated Control Electro-hydrostatic Actuator

作　　者：王云鹏[1] 郭创[1] 谢伟[1] 

机构地区：[1]空军工程大学航空航天工程学院,西安710038

出　　处：《机械科学与技术》2016年第10期1603-1608,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(61304120)资助

摘　　要：为了解决机载电静液作动器(EHA)响应速度与作动效率难以兼顾的问题,设计了一种泵阀协调控制的EHA并利用MATLAB/Simulink软件进行了建模与仿真分析。首先结合典型的变转速定排量EHA与直接驱动阀,阐述了系统的结构组成与工作原理,提出了根据飞行任务阶段不同而互为备份的3种工作模式;然后考虑到系统的复杂性与非线性,分别建立了泵控与阀控模式下的数学模型;最后根据某型飞行控制系统的性能要求,设计了系统的控制器并进行了仿真实验。结果表明,泵阀协调控制EHA具有较高的精确度和稳定性,同时阀控模式下系统的动态响应特性要明显优于泵控模式。In order to solve the response speed and operation efficiency of airborne electro-hydrostatic actuator（ EHA） both,a pump and valve coordinated control EHA was designed and simulated with MATLAB /SIMULINK software. Firstly,the EHA composition and structure principle were described by combing typical EHA with direct drive valve,and three mutually backup work patterns were proposed according to the different flight phases. Then,considering the EHA complexity and nonlinearity,we established the pump control and valve control models respectively. Lastly, the EHA controller was designed and the computer simulation was carried out for the performance requirements of a certain type of flight control systems. The experimental results show that the pump and valve coordinated control EHA has higher precision and stability,and the valve control system＇ s dynamic response characteristics is superior to that of pump control system.

关 键 词：电静液作动器 泵阀协调控制 设计与仿真 飞行任务阶段 动态性能 

分 类 号：TH137[机械工程—机械制造及自动化]