| 基于闭环解析解的可重复使用运载器轨迹在线生成方法 |
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| 引用本文： | 李昭莹,黄兴李,李惠峰.基于闭环解析解的可重复使用运载器轨迹在线生成方法[J].宇航学报,2013,34(6):755-762. |
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| 作者姓名： | 李昭莹 黄兴李 李惠峰 |
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| 作者单位： | 1.北京航空航天大学宇航学院，北京 100191；
2.空间物理重点实验室, 北京 100076 |
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| 基金项目： | 国家自然科学基金（61174221） |
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| 摘 要： |
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| 关 键 词： | 可重复使用运载器 轨迹生成 过程约束 闭环解析解 |
| 收稿时间： | 2012-12-31 |
On Line Trajectory Generation Method Based on Closed Form Analytical Solution for Reusable Launch Vehicle |
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| LI Zhao ying,HUANG Xing li,LI Hui feng.On Line Trajectory Generation Method Based on Closed Form Analytical Solution for Reusable Launch Vehicle[J].Journal of Astronautics,2013,34(6):755-762. |
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| Authors: | LI Zhao ying HUANG Xing li LI Hui feng |
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| Affiliation: | 1.School of Astronautics, Beijing University of Aeronautics and Astronautics，Beijing 100191，China；
2.Key Laboratory of Space Physics，Beijing 100076，China |
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| Abstract: | The relationships between path constraints such as heating rate, dynamic pressure and aerodynamic load and velocity during entry flight are analyzed in r-V plane for an entry vehicle with mediate high lift to drag ratio. Through derivation and integration, a unified formula for path constraints is obtained in r-V plane. Based on the unified formula and several characteristics an analytical solution is obtained，and an online trajectory generation method is developed. In the method, the coupled longitudinal and lateral motion is considered, and can make the best use of flight capability and satisfy path constraints. Trajectory generation cases with different flight mission and downranges are tested. Simulation results demonstrate the capability and efficiency of the trajectory planning method in dealing with path constraints. |
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| Keywords: | Reusable launch vehicle Trajectory generation Path constraints Closed form analytical solution |
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