无人机/载机近距飞行气动稳定性及位置控制研究  

Research on aerodynamic stability and position control of unmanned aerial vehicle/carrier-aircraft at close-range-flight

作　　者：胡汉东 汪文凯 江雄 刘福军 司芳芳 HU Handong;WANG Wenkai;JIANG Xiong;LIU Fujun;SI Fangfang(Beijing Aerohydrodynamics Research Center,Beijing 100011,China)

机构地区：[1]北京流体动力科学研究中心,北京100011

出　　处：《航空工程进展》2024年第6期198-208,共11页Advances in Aeronautical Science and Engineering

摘　　要：无人机空中回收、密集编队飞行和空中加油都涉及飞行器在近距干扰流场中的飞行稳定性和位置控制问题。针对无人机横向近距飞行回收/放飞的应用背景,采用干扰气动导数模型,建立近距干扰流场中飞行器的纵向小扰动运动方程,根据飞行器位置稳定性要求,提出采用单独舵面偏转模拟回复力实现无人机纵向位置稳定的方法。在此基础上,结合典型飞行器数据,采用状态空间分析方法,建立代价函数,完成俯仰舵偏和变推力最优控制设计和仿真,初步验证了无人机纵向近距稳定飞行控制的可行性。Aerial recovery,dense flight and aerial refueling of unmanned aerial vehicles(UAVs)all involve flight stability and position control of the vehicle in a close-range interference flow field.In view of the background of UAV lateral recovery and release,adopting interference aerodynamic derivative model,the longitudinal small disturbance equation of motion of the vehicle in the close interference flow field is established,and the method using the rudder deflection to simulate the restoring force to achieve the longitudinal positional stability of the UAV is proposed.By using typical vehicle data,adopting the state space analysis method,the cost function is established,the optimal control design of pitch rudder deflection and variable thrust are completed,and the method of achieving the UAV longitudinal close-range-flight stability control is simulated and verified.The feasibility of close-range-flight stability is preliminarily verified.

关 键 词：无人机/载机 稳定性 干扰流场 气动特性 位置控制 

分 类 号：V279[航空宇航科学与技术—飞行器设计] V212.12