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| 月球返回舱跳跃再入弹道特性分析与优化设计 | |
| 引用本文： | 王银,陆宇平,张崇峰.月球返回舱跳跃再入弹道特性分析与优化设计[J].南京航空航天大学学报,2010,42(1). |
| 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. 上海航天技术研究院805研究所,上海,201108 |
| 摘 要： | 对月球返回舱跳跃再入大气层的初始再入段弹道特性与过载约束下轨迹优化问题进行了分析。首先介绍了跳跃再入的基本概念与优点,对不同再入角、不同升阻比情况下初始再入段的弹道特性进行了分析。然后采用庞特里亚金极大值原理以总吸热量最小为优化目标,对过载约束下再入轨道的初始再入段进行了优化设计,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飞行过程中的过载。 |
| 关 键 词： | 月球返回舱 跳跃再入 过载约束 轨迹优化 两点边值问题 |
Skip-Entry Trajectory Characteristic Analysis and Optimal Design for Lunar Return Vehicle |
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| Wang Yin,Lu Yuping,Zhang Chongfeng.Skip-Entry Trajectory Characteristic Analysis and Optimal Design for Lunar Return Vehicle[J].Journal of Nanjing University of Aeronautics & Astronautics,2010,42(1). | |
| Authors: | Wang Yin Lu Yuping Zhang Chongfeng |
| Institution: | 1.College of Automation Engineering/a>;Nanjing University of Aeronautics & Astronautics/a>;Nanjing/a>;210016/a>;China/a>;2.College of Astronautics/a>;3.Institute 805/a>;Shanghai Academy of Spaceflight Technology/a>;Shanghai/a>;201108/a>;China |
| Abstract: | The trajectory characteristic analysis and optimal design on the overload constrain for skip entry lunar return vehicle are analyzed.Firstly,the concept and the advantage of the skip entry are introduced.The trajectory characteristics of the first entry in a skip entry at different lift-to-drag ratios and reentry angles are analyzed.Secondly,the trajectory is optimized by applying the Pontryagin maximum principle on the performance of the minimum heat,and the optimal expression of the lift coefficient is de... |
| Keywords: | lunar return vehicle skip entry overload constraint optimal design two-point boundary value problem |
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