小天体附近的轨道动力学研究综述

Review of Orbital Dynamics in the Vicinity of Solar System Small Celestial Bodies

小天体附近的轨道动力学是现代天体力学的一个重要研究方向,包含着丰富的物理现象和深刻的数学内涵;随着一系列小行星实地探测任务的深入开展,理解小天体附近的轨道运动规律也成为航天领域所面对的众多挑战之一。回顾了小天体研究和探测的历程,分析了小天体附近轨道动力学问题的基本特点和科学价值;详细介绍了航天动力学、行星学和非线性科学三个学科领域对该问题的讨论和研究进展,并列举了各领域中相关的热点问题;基于对上述研究现状的分析,尝试展望了该研究方向未来的发展趋势。

The orbital dynamics in the vicinity of solar system small bodies （SSSB） is an important aspect of modern celestial mechanics, which has abundant physical phenomenon and may offer a deep insight into the referred dynamics. During last two decades, several deep space probes have been sent to SSSB for in-situ explorations of these small worlds, which highlighted the orbital dynamics in around SSSB as one of the biggest challenges in space engineering. This paper first reviewed the history of SSSB studies and explorations, and gave a summary on the generality and merit of the orbital dynamics. Then we introduced in detail the developments of astronautics, planetary science and nonlinear dynamics on this issue, and presented the relevant hot topics in these fields. Based on the reviews, the last part of this paper attempted to outline the tendency of future researches on this issue.