主动侧杆引导下的Ⅱ型驾驶员诱发振荡抑制  

Using active side-stick to prevent category Ⅱ pilot-induced oscillations

作　　者：许舒婷 谭文倩[1] 孙立国 屈香菊[1] XU Shuting;TAN Wenqian;SUN Liguo;QU Xiangju(School of Aeronautic Science and Engineering,Beihang University,Beijing 100083,China)

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083

出　　处：《航空学报》2018年第8期1-12,共12页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(11502008);航空科学基金(2017ZA51002)~~

摘　　要：现代飞机采用放宽静稳定性构型和侧杆控制器操纵,使得舵面速率饱和引起的驾驶员诱发振荡(PIO)成为影响飞行品质的一个重要因素。针对舵面速率饱和引起的Ⅱ型PIO问题,设计了主动侧杆人感系统,其弹性系数随着舵面偏转速率饱和的发生而改变,从而达到抑制速率饱和的作用。基于主动侧杆引导下的人机闭环系统模型,仿真分析和飞行品质评价验证表明,基于系统误差在线调整人感系统弹性系数,能够降低舵机速率饱和的程度,改善飞行品质,有效抑制舵机速率饱和引起的Ⅱ型PIO。Modern fly-by-wire airframes are often designed to have relaxed static stability and side-stick control,making Pilot-Induced Oscillation（PIO）caused by actuator rate saturation as an important factor affecting flight qualities.In this paper,an active side-stick is designed as a means to alleviate pilot-induced oscillations due to actuator rate saturation.The stiffness of the active side-stick is changed with the actuator rate saturation,so as to mitigate the rate saturation.Based on the pilotaircraft closed-loop system model with active side-stick,the simulation analysis and evaluation results show that the active side-stick to change the stiffness of the feel system can reduce the degree of saturation,improve flying qualities,and prevent category II PIO due to actuator rate saturation effectively.

关 键 词：人感系统 驾驶员诱发振荡 Ⅱ型PIO抑制 速率饱和 主动侧杆 

分 类 号：V249.11[航空宇航科学与技术—飞行器设计]