Chaotification Method for the Glide Midcourse Trajectory

作     者：Fangzhen Liu Luhua Liu Chao Ou 

作者机构：School of Aeronautics and AstronauticsSun Yat-Sen University Shenzhen Key Laboratory of Intelligent Microsatellite Constellation School of Aeronautics and AstronauticsHuazhong University of Science and Technology China Aerodynamics Research and Development Center 

出 版 物：《Journal of Harbin Institute of Technology(New series)》 (哈尔滨工业大学学报(英文版))

年 卷 期：2024年

学科分类：08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：Sponsored by the National Natural Science Foundation of China(Grant No.61973326) the Shenzhen Science and Technology Program(Grant No.ZDSYS20210623091808026) the Key Laboratory of Cross-Domain Flight Interdisciplinary Technology(Grant No.2024-KF02201) 

摘      要：In order to enhance the penetration performance of hypersonic gliding vehicle,a chaotification method of gliding midcourse based on flight dynamics is proposed. Firstly,a chaotic series-based angle of attack(AOA)control algorithm and an AOA switching control algorithm considering flight altitude are proposed in this study based on a simple chaotic system with considerations of AOA constraints and process constraints. Secondly,the Lyapunov exponent algorithm of continuous system is applied to verify the chaotic characteristic of flight trajectories. Thirdly,a stability region analysis method is proposed based on a conservative dynamics,which can be applied to the stability region analysis of general complex dynamics. Finally,the simulations show that both control algorithms can realize the chaotification of trajectories,and the flight trajectories obtained by the AOA switching control algorithm are feasible.