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| 带配平翼月球返回舱跳跃再入轨迹优化设计 | |
| 引用本文： | 王银,陆宇平,张崇峰.带配平翼月球返回舱跳跃再入轨迹优化设计[J].宇航学报,2011,32(2). |
| 作者姓名： | 王银 陆宇平 张崇峰 |
| 作者单位： | 1. 南京航空航天大学自动化学院,南京,210016 2. 南京航空航天大学航天学院,南京,210016 3. 上海宇航系统工程研究所,上海,201108 |
| 摘 要： | 为解决小升阻比月球返回舱再人大气层时安全性低、机动能力差的问题,提出采用一种带配平翼的中等升阻比返回舱做为月球采样返回舱,并对动压约束下轨迹优化问题进行了分析.首先介绍了一阶状态变量约束最优控制问题.然后采用庞德里亚金极大值原理以总吸热量最小为优化目标,对动压约束下再人轨道的初始再人段进行了优化设计,给出了升力系数的最优表达式.仿真研究表明,该方法能有效地降低返回舱再人过程中的动压. |
| 关 键 词： | 配平翼 月球返回舱 跳跃式再入 动压约束 轨迹优化 |
Skip-Entry Trajectory Optimization Design for Lunar Return Vehicle with Trim-Flaps |
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| WANG Yin,LU Yu-ping,MANG Chong-feng.Skip-Entry Trajectory Optimization Design for Lunar Return Vehicle with Trim-Flaps[J].Journal of Astronautics,2011,32(2). | |
| Authors: | WANG Yin LU Yu-ping MANG Chong-feng |
| Institution: | WANG Yin1,LU Yu-ping2,ZHANG Chong-feng3(1.College of Automation Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing 210016,China,2.College of Astronautics,3.Shanghai Institute of Astronautical Systems Engineering,Shanghai 201108,China) |
| Abstract: | A medium lift-to-drag ratio lunar sample return vehicle with trim-flaps is proposed to cope with problems of low safety and poor maneuverability when the vehicle lift-to-drag ratio is low.The trajectory optimization design for skip reentry lunar return vehicle is analyzed under dynamic pressure constraint.Firstly the optimization problem with a first-order state constraint is introduced.Secondly the trajectory is optimized by applying the Pontryagin maximum principle under the performance of minimum heat,an... |
| Keywords: | Trim-flap Lunar return vehicle Skip reentry Dynamic pressure constraint Optimization design |
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