Earth-month/month-earth direct transfer orbit design method based on reachable set concept

Abstract

The invention discloses an earth-moon / moon-earth direct transfer orbit design method based on a reachable set concept. According to the method, the relative geometrical relationship between the earthlow-orbit berthing orbit and the moon is analyzed; concepts of an earth-moon direct transfer reachable set and a moon-earth direct transfer reachable set are defined, then numerical solution is performed on the earth-moon direct transfer reachable set by introducing a minimum near-moon-distance double-pulse earth-moon direct transfer orbit, and the moon-earth direct transfer reachable set is obtained based on symmetry of the reachable set. The earth-month direct transfer reachable set and the month-earth direct transfer reachable set effectively disclose geometrical conditions for realizing earth-month / month-earth direct transfer, and can be used for quickly analyzing orbit transfer windows and transfer orbit characteristics of the earth low-orbit space station to and fro the moon low orbit, so that the method can be directly applied to moon detection task analysis based on the earth low-orbit space station. According to the method, the high-precision earth-moon / moon-earth direct transfer orbit can be obtained, and the method is rapid and effective.

Description

Technical field [0001] The invention relates to the technical field of aerospace orbit dynamics, in particular, to a method for designing an orbit for direct earth-moon / moon-to-earth transfer based on the reachable set concept. Background technique [0002] Low-Earth orbiting space stations, such as the International Space Station and the upcoming China Space Station, are used as low-Earth orbit resources for manned spaceflight. They play a role in supporting astronauts to stay in orbit for a long time, providing an on-orbit non-gravity scientific experiment environment, and releasing tiny satellites. And many other roles. In addition, the low earth orbit space station can also provide on-orbit maintenance and refueling services for various types of aircraft. Therefore, the use of a low-earth orbit space station as a space port for manned lunar exploration is not only conducive to the reusable use of manned spacecraft, but also has important significance for future sustainable m...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a design method of the Earth-Moon / Moon-Earth direct transfer orbit based on the concept of reachable set, to solve the problem that none of the existing Earth-Moon round-trip transfer orbit design methods essentially provides the conditions for realizing the Earth-Moon transfer or the Moon-Earth transfer. The transfer conditions cannot be directly applied to the technical problems of lunar-earth transfer and rapid mission analysis of the low-earth orbit to and from the lunar orbit

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