Search method for multi-constrained earth-moon transfer orbit cluster with equal launch intervals

Abstract

The present invention provides a search method for a multi-constrained earth-moon transfer orbit cluster with equal launch intervals. The method is used for designing n earth-moon transfer orbit clusters meeting multiple constraints and with equal launch intervals within a launch day, and the method takes full advantage of a feature that rocket launch parameters can be adjusted. The method is completed through outer-layer and inner-layer search, and the inner-layer search comprises preliminary search and refine search of a single orbit. A preliminary orbit search algorithm adopts a simulated annealing simplex hybrid algorithm, and a refine orbit search algorithm adopts a class differential correction algorithm. Firstly, preliminary design and search of the orbit are carried out based on an improved conic curve splicing method, an initial orbit parameter value is rapidly calculated, the refine orbit search algorithm is used to carry out refine design on the orbit, and an earth-moon orbit meeting the constrained condition is obtained. The outer-layer search completes continuous multi-orbit search with equal launch intervals, so that n earth-moon transfer orbits meeting the multiple constrained conditions with equal launch intervals are finally obtained.

Description

technical field [0001] The invention relates to the fields of orbit design and deep space exploration, in particular to a search method for multi-constrained Earth-Moon transfer orbit clusters for lunar exploration with equal interval launches. Background technique [0002] Lunar exploration is the focus of early space exploration. The moon is the only natural satellite of the earth and the closest planet to the earth. The average distance between the earth and the moon is about 380,000 kilometers. Compared with other planets, such a short distance makes the moon naturally become the first target for humans to transfer to outer space, and it is also an important transit for humans to fly to other planets. stand. After the 1990s, a number of missions and plans have shown that the world has set off an upsurge in lunar exploration. my country also launched the "Chang'e Project" lunar exploration program in 2004. In December 2013, Chang'e 3 successfully landed with the Yutu pr...

AI Technical Summary

Problems solved by technology

However, since existing studies have shown that the entry window of the Earth-Moon Transfer Orbit on the large elliptical parking orbit probe is a zero window, it means that if an unexpected situation occurs before the launch and misses the launch window, it will only be delayed for about half a month. There is another launch opportunity, which places very demanding requirements on the preparation of the launch site

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