| 载人航天器深空飞行返回再入轨迹优化 |
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| 引用本文： | 闵学龙,潘腾,郭海林. 载人航天器深空飞行返回再入轨迹优化[J]. 中国空间科学技术, 2009, 29(4): 8 |
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| 作者姓名： | 闵学龙 潘腾 郭海林 |
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| 作者单位： | 北京空间飞行器总体设计部; |
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| 摘 要： | 分析了载人航天器深空飞行返回再入的飞行特点,指出其轨迹优化研究的必要性;给出了基于遗传算法的轨迹优化方法;利用自主编制的仿真软件程序,采用与Apollo和Soyuz飞船类似的返回舱的参数进行了仿真。仿真结果表明,优化后加速度过载峰值被严格控制在满足载人飞行要求的范围内,同时其他过程载荷峰值也在满足约束的前提下明显降低,总吸热量和再入航程也大幅缩减,优化后再入轨迹满足工程实施的初步要求。
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| 关 键 词： | 深空飞行 再入轨迹优化 遗传算法 仿真 载人航天器 |
Reentry Trajectory Optimization for Manned Deep Space Exploration |
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| Min Xuelong,Pan Teng,Guo Hailin. Reentry Trajectory Optimization for Manned Deep Space Exploration[J]. Chinese Space Science and Technology, 2009, 29(4): 8 |
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| Authors: | Min Xuelong Pan Teng Guo Hailin |
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| Abstract: | A method for reentry trajectory optimization using genetic algorithm was established.The presumptive performance of the manned deep space exploration capsules like Apollo and Soyuz command modules were employed.By a Matlab optimization process,the simulation results indicate that the maximum g-load is less than 4gn.The pressure,heat density,temperature and the total heat rates decrease obviously.The flight distance is shorter than that of the un-optimal reentry trajectory. |
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