摘要
载人登月的月地返回转移轨道特性分析对轨道设计非常重要。利用解析方法分析了月地返回转移轨道的特征,给出了返回转移轨道的参数随月球发射窗口变化情况。在给定返回着陆场的情况下,为了获得合适的再入航程和返回倾角,分析了1个月之内适合从月球出发的日期。同时利用优化方法得到了双二体模型下的月地返回转移轨道,并将解析分析方法的结果与优化结果进行了比较,两种结果比较接近,表明运用解析分析方法可以有效、快速地进行定性分析。
The characteristics study of lunar trans-Earth trajectory is very important for its design. Geometrical method is used to analyze the dependence of lunar trans-Earth trajectory on the launching window from the Moon. For a given landing field, the appropriate departure dates within a month are analyzed to obtain a favorite landing range and returning obliquity. At the same time, the optimization method is used to design the lunar trans-Earth trajectory. Comparison between the geometrical method and the optimization method show that the results are similar. Therefore, the geometrical method is an effective way for a quick analysis.
出处
《载人航天》
CSCD
2012年第6期20-26,共7页
Manned Spaceflight
关键词
载人登月
返回转移轨道
解析方法
Manned Lunar Landing
Lunar Trans-Earth Trajectory
Geometrical Method
