一种无动力条件下的再入滑翔飞行编队制导方法  

A formation guidance method for reentry unpowered gliding flight

作　　者：沈馨 李响[1] 张后军 郭宇恒 刘旭 SHEN Xin;LI Xiang;ZHANG Houjun;GUO Yuheng;LIU Xu(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China;Beijing Electro mechanical Engineering Research Institute,Beijing 100083,China)

机构地区：[1]北京理工大学宇航学院,北京100081 [2]北京机电工程研究所,北京100083

出　　处：《飞行力学》2023年第4期74-80,共7页Flight Dynamics

摘　　要：根据无动力再入滑翔飞行器的飞行特点,以再入滑翔飞行器为对象,构建了一种无动力条件下的编队制导方法。再入滑翔飞行编队采用“领航-跟随”方式,通过气动阻力调节速度达到编队目的。针对气动阻力与气动升力密切耦合,严格的三维编队位置约束难以满足的问题,放宽高度方向位置约束,代之以准平衡滑翔反馈。针对无动力再入飞行时间长、距离远、速度调节能力弱的客观现实,将整个再入飞行编队分为编队形成和编队保持两个阶段,并采取不同的制导律,且在形成阶段限制领航者不做横向机动。仿真结果表明,该方法能够导引飞行器较快地形成编队且保持指定的队形飞行到交班点。According to the flight characteristics of the unpowered reentry gliding vehicle,a forma-tion guidance method under the unpowered condition is constructed for the reentry gliding vehicle.The reentry gliding flight formation adopts the lead-follow mode,and achieves the formation purpose by adjusting the speed through aerodynamic drag.Due to the close coupling of aerodynamic drag and aerodynamic lift,it is difficult to meet the strict three-dimensional formation position constraints.Therefore,the position constraints of vertical direction are relaxed and the quasi equilibrium glide feedback is used instead.In view of the objective reality of long unpowered reentry flight time,long distance and weak speed regulation capability,the whole reentry flight formation is divided into two stages(formation and keeping).Different guidance laws are adopted in the two stages,and the leader is restricted from lateral maneuver in the formation stage.The simulation results show that this method can guide the vehicle to form into columns quickly and maintain the designated formation to junction point.

关 键 词：编队飞行 再入制导 准平衡滑翔 时间协同 

分 类 号：V448.23[航空宇航科学与技术—飞行器设计]