运输机重装空投二阶终端滑模控制方法研究  

Second-Order Terminal Sliding Mode Control of a Transport for Heavyweight Airdrop

作　　者：王文星[1] 雒东超 张晓敏[1] 孙秀霞[2] 王栋[2] 

机构地区：[1]中国飞行试验研究院中航工业飞行仿真航空科技重点实验室,西安710089 [2]空军工程大学航空航天工程学院,西安710038

出　　处：《计算机测量与控制》2016年第9期107-109,共3页Computer Measurement &Control

基　　金：国家自然科学基金资助项目(61273141);航空科学基金资助项目(20141396012)

摘　　要：针对重装空投过程中,货物的持续移动及瞬间出舱影响空投任务完成性、威胁飞行安全等问题,提出了一种二阶终端滑模纵向飞行控制方法;该方法利用非线性多输入多输出反馈线性化完成系统解耦线性化,在此基础上采用二阶终端滑模变结构控制设计系统内环速度与俯仰姿态跟踪控制器,保证了系统鲁棒性,结合外环PID高度保持控制器完成了整个飞行控制系统的设计;数值仿真结果表明,该系统具有良好的响应特性,且对系统不确定性具有较强的鲁棒性。In order to dealing with the influence caused by the continuous movement of the cargo and its sudden deplaning during airdrop operations,a novel flight controller based on the second-order terminal sliding mode control approach is designed.This method uses the feedback linearization technique to decouple the nonlinear airdrop model.On this basis,a second-order terminal sliding mode control law is proposed for airspeed and pith attitude control,which can guarantee robustness of the system.The overall flight control system is completed with the outer-loop altitude-hold control based on a PID controller.Simulation results show the good performance of the proposed control scheme.

关 键 词：非线性系统 飞行控制 终端滑模 二阶滑模 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]