小天体引力场建模技术进展  

Recent Advances in Modeling Gravity Field of Small Bodies

作　　者：尚海滨[1] 韦炳威 卢榉承 SHANG Haibin;WEI Bingwei;LU Jucheng(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学宇航学院,北京100081

出　　处：《深空探测学报（中英文）》2022年第4期359-372,M0001,M0002,共16页Journal Of Deep Space Exploration

基　　金：空间碎片专项基金资助项目(KJSP2020020301)。

摘　　要：针对小天体引力场建模问题,回顾了不同学者对引力场计算问题的认识与发展,阐释了不同方法的基本原理和不足;探讨了双小行星系统附近的引力场建模技术与双小行星系统动力学的关系,梳理了双小行星系统动力学研究中引力相互作用的建模技术发展历程;展望了小天体引力场建模技术的发展趋势。Small celestial bodies in the Solar system,such as asteroids and comets,have become the key targets in the field of deep space exploration. The exploration of small celestial bodies is of great significance for studying the formation and evolution of the solar system,the origin of life,planetary defense,and the exploitation of space resources. With the continuous development of aerospace technology,the way of small-body exploration has gradually shifted from flyby and orbiting to closeproximity detection methods,such as landing,sampling,and touring. The construction of a high-accuracy gravitational field model in the vicinity of the given small body is crucial to the design and implementation of such close-proximity exploration missions and to the study of dynamics near the small bodies. Thus,this paper first reviews the two-hundred-year history of development of the modeling of gravitational field,and elucidates the basic principles and drawbacks in the different methods. The relationship between the gravitational field near the binary asteroid system and the dynamics of such system is second reviewed. This paper also reviews the techniques for modelling the gravitational interactions in the study of the dynamics of the binary asteroid system. These techniques provide fundamental tools for the binary system mission designs and the study of the formation and evolution of the binaries. Finally,the future research trends are discussed.

关 键 词：小天体 引力场模型 双小行星系统 引力相互作用 

分 类 号：V412.4[航空宇航科学与技术—航空宇航推进理论与工程]