余度作动系统力纷争机理及控制方法综述

Literature Review on Force Disputes and Control Methods of Redundant Actuator Systems

伺服作动器是飞控操纵系统的执行机构,为了保证飞行过程的安全性和可靠性,会对飞控作动系统进行液压余度备份;当采用通道并列的余度备份形式,各个通道控制回路之间的机械结构、信号传输和传感采集等环节的差异性,会导致作动筒输出的位移不一致,从而在舵面铰链之间产生力纷争现象;力纷争现象会影响系统的控制性能并对舵面结构造成疲劳损伤。从力纷争现象及其产生机理进行分析,对相关的研究进行了调研和汇总,阐述了针对不同构型的余度作动系统在力纷争抑制中尚需解决的问题和难点,在未来可能会与人工智能相结合对力纷争进行准确抑制。

Servo actuation system is the actuator of aircraft telex operation system,and its reliability is one of the important technical indexes.In order to ensure the safety and reliability of the flight process,redundancy backup is often carried out for the aircraft actuation system.When the redundancy backup form of parallel channels is adopted,force disputes will occur due to the difference between each channel,which will affect the control performance of the system and cause structural damage to the rudder surface.This paper analyzes the causes of force dispute,summarizes the research status of force dispute control technology and points that need to be solved,and finally summarizes the existing problems.In the future,it is possible to combine artificial intelligence with accurate suppression of power disputes.