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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。
Manned lunar return to the moon orbit characteristics of the track design is very important. The characteristics of the orbital return transfer orbit are analyzed by means of analytical method and the variation of the return orbit parameters with the lunar launch window is given. Given a return to the landing site, in order to obtain a suitable re-entry voyage and return inclination, an analysis is made of the dates suitable for departure from the moon within a month. At the same time, using the optimization method, we get the orbit transfer and return trajectory under the dual dyadic model. The results of the analytical method are compared with those of the optimized method. The two results are close to each other, which shows that the analytic method can be used for qualitative and speedy qualitative analysis analysis.