| 可重复使用运载器自动着陆分段制导策略 |
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| 引用本文： | 孙国鑫,夏群利,张道驰,徐文博.可重复使用运载器自动着陆分段制导策略[J].系统工程与电子技术,2019,41(4):856-862. |
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| 作者姓名： | 孙国鑫 夏群利 张道驰 徐文博 |
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| 作者单位： | 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 100074 |
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| 摘 要： | 针对可重复使用运载器无动力自动着陆问题,提出一种非轨迹跟踪式的分段制导策略。首先根据能量管理段和自动着陆段交接班要求以及着陆末端约束条件,分别设计了纵向轨迹和侧向轨迹的分段方案,然后针对各阶段特点设计了分段制导律,最后为了保证全程动压满足约束条件,提出了阻力板控制策略。数学仿真表明,该制导策略能够有效地实现自动着陆,且各项指标均满足规定的约束条件,并且抗风干扰及抗拉偏能力强,便于工程实现。
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Piecewise guidance strategy of auto landing for reusable launch vehicle |
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| SUN Guoxin,XIA Qunli,ZHANG Daochi,XU Wenbo.Piecewise guidance strategy of auto landing for reusable launch vehicle[J].System Engineering and Electronics,2019,41(4):856-862. |
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| Authors: | SUN Guoxin XIA Qunli ZHANG Daochi XU Wenbo |
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| Institution: | 1. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;;
2. Beijing Institute of Mechanical and Electrical Engineering, Beijing 100074, China; |
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| Abstract: | A piecewise guidance strategy of unpowered auto landing for reusable launch vehicle is proposed based on non trajectory tracking methods. According to the auto landing constraints and the shift requirements of two phases, which are the terminal area energy management phase and the approaching and landing phase, vertical and horizontal piecewise trajectories are designed, each piece of trajectory is matched with a guidance law, and the drag panel control strategy is presented to solve the maximum dynamic pressure control problem. Simulation shows that the constraints can satisfy the restricting conditions with the advantages of great robustness under the interference environment and easy engineering. |
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