地月系统循环轨道初步设计与特性分析

基于平面圆型限制性三体问题(CR3BP)模型,根据轨道弧以及顺行和逆行特征采用圆锥曲线拼接法设计了5类地月系统周期轨道。以地月系统循环轨道的工程约束为出发点,从轨道周期、近地点高度、近月点高度、交会对接速度、轨道稳定性等方面分析了这5类周期轨道的特性,从中选择了适合地月系统循环轨道任务方案的周期轨道,并对周期轨道进行了优化。该研究为我国未来载人登月工程提供了一种新的思路与理论技术支持。

Preliminary design and characteristic analysis of cycler orbits in Earth-Moon system

According to arcs that belong to the generating orbit of the second species and direction of motion, five types of period orbits are designed by patched conic technique based on planar circular restricted three-body problem (CR3BP) model. Characteristics of five types of period orbits are analyzed from the aspects of period time, perigee distance, perilune distance, the speed of rendezvous and docking, as well as stability of the orbits. A proper type of orbits is selected for the mission considering the engineering constraints of cycler architecture. Then the cycler orbit selected from the proper type is optimized to meet the requirements of the mission. This study and survey about cycler orbits in the Earth-Moon system could provide a new insight into and reference for the manned lunar landing project of China in future.