| Author Name | Affiliation | Postcode | | Fangzhen Liu | 1.School of Aeronautics and Astronautics, Sun Yat-Sen University, Shenzhen 518107, China
2.Shenzhen Key Laboratory of Intelligent Microsatellite Constellation, Shenzhen 518107, China | 518107 | | Luhua Liu* | 1.School of Aeronautics and Astronautics, Sun Yat-Sen University, Shenzhen 518107, China
2.Shenzhen Key Laboratory of Intelligent Microsatellite Constellation, Shenzhen 518107, China | 518107 | | Chao Ou | 3.School of Aeronautics and Astronautics, Huazhong University of Science and Technology, Wuhan 430074, China
4.China Aerodynamics Research and Development Center, Mianyang 621000, China | 430074 |
|
| Abstract: |
| 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. |
| Key words: Maneuver Chaotification Lyapunov exponent |
| DOI：10.11916/j.issn.1005-9113.2024029 |
| Clc Number:V412.4 |
| Fund: |
