Accurate and fast design algorithm for free-return lunar flyby trajectories

作者：Zhang Hongli^*; Luo Qinqin; Han Chao

来源：Acta Astronautica, 2014, 102: 14-26.

DOI：10.1016/j.actaastro.2014.05.015

• Lunar flyby
• Free-return trajectory
• Trajectory design
• The pseudostate theory

A linear approximation based fast prediction algorithm for the Earth-Moon transfer trajectory is proposed. Compared with the multi-conic technique, the algorithm dramatically improves the accuracy of the trajectory prediction results. Based on this prediction algorithm and the pseudostate theory, a preliminary design algorithm of the free-return lunar flyby trajectories between the Earth and the Moon is developed. Without numerical differential correction, an accurate solution can be obtained within a little computational time. A large number of numerical examples are carried out to examine the reliability and efficiency of this design algorithm. The results indicate that this design algorithm has a good balance between the accuracy and efficiency. It is valuable for the large-scale computational applications, such as the lunar exploration mission analysis.

• 出版日期2014-10
• 单位北京航空航天大学