变构型高超声速滑翔飞行器再入轨迹优化  

Reentry Trajectory Optimization of Variable⁃Configuration Hypersonic Glide Vehicle

作　　者：李畅 赵吉松 LI Chang;ZHAO Jisong(College of Astronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,P.R.China)

机构地区：[1]南京航空航天大学航天学院,中国南京211106

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2023年第S02期32-39,共8页南京航空航天大学学报（英文版）

摘　　要：研究了变构型飞行器(Variable-configuration vehicle,VCV)的再入轨迹优化问题,建立了气动代理模型,用于快速预测不同变形和飞行条件下飞行器的空气动力学特性。以变形量、迎角和倾斜角的变化过程作为轨迹优化变量,定量研究了VCV的着陆区覆盖能力和避障机动性能。仿真结果表明,与固定配置飞行器(Fixed-configuration vehicle,FCV)相比,VCV除了可以实现沿再入-滑翔轨迹的最优控制之外,还可以沿再入轨迹进行最佳变形,从而达到更优的再入轨迹性能。The reentry trajectory optimization of a variable-configuration vehicle(VCV)is studied.A surrogate model is established for quick prediction of vehicle aerodynamics at different deformation and flight conditions.The time histories of deformation,angle of attack and bank angle are all taken as trajectory optimization variables,and the performance of the VCV in landing coverage area and the maneuverability to avoid obstacles are quantitatively studied.Simulation results show that compared with the fixed-configuration vehicle(FCV),the VCV can achieve the optimal morphing in addition to the optimal control along the reentry glide trajectory,thus leading to better reentry trajectory performance.

关 键 词：高超声速滑翔 气动代理模型 轨迹优化 可变构型 

分 类 号：V448[航空宇航科学与技术—飞行器设计]