考虑太阳摄动的小行星附近轨道动力学
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- 英文论文题名：Orbit Dynamics in the Vicinity of Asteroid with Solar Perturbation
- 论文作者：倪彦硕 ; 宝音贺西 ; 李俊峰
- 英文论文作者：NI Yanshuo ; BAOYIN Hexi ; LI Junfeng ; School of Aerospace Engineering ; Tsinghua University
- 年：2016
- 作者机构：清华大学航天航空学院;
- 论文关键词：小行星 ; 周期轨道 ; 216 Kleopatra ; 433 Eros
- 英文论文关键词：Asteroid ; periodic orbits ; 216 Kleopatra ; 433 Eros
- 会议召开时间：2016-11-25
- 会议录名称：2016年航空科学与技术全国博士生学术论坛摘要集
- 语种：中文
- 分类号：V412.41
- 学会代码：XBHH
- 会议名称：2016年航空科学与技术全国博士生学术论坛
- 会议地点：中国陕西西安
- 主办单位：西北工业大学研究生院、中国高校航空学院院长联席会
- 学会名称：西北工业大学航空学院
- 页数：1
- 文件大小：472k
- 原文格式：D
- 会议级别：全国
摘要
本文研究了216 Kleopatra(艳后星)和433 Eros(爱神星)附近的周期轨道,在考虑太阳引力摄动的情况下,发现了以往所遗漏的216Kleopatra轨道族和环绕433Eros的12族周期轨道,并且给出了它们的特性。研究结果表明,太阳引力对小行星平衡点位置的影响很小,但是对平衡点上航天器运动的影响较大。同族不稳定轨道中,大Jacobi常数轨道更容易在摄动后保持轨道原来特性,这很好地解释了小行星卫星在较远轨道上长期存在的可能性。
Orbital dynamics with solar gravity perturbation in the vicinity of the irregular asteroids is studied in this paper. The motions in the gravity fields of 216 Kleopatra and 433 Eros, and the periodic orbits around the asteroids with perturbation of solar gravitation are analyzed to find a new family of periodic orbits of 216 Kleopatra. It is also found 12 families of periodic orbits as well as aboundednon-periodicorbit around 433 Eros and their topology and stability are studied in some details.The resultsshow that solar gravitation has little effect on the positions of asteroids equilibria in the body-fixed frame while has greatereffect on the motion of a spacecraft on the equilibria. The solar gravitation is not strong enough to increase or decrease the families of periodic orbits, nor is it able to change the stabilities of periodic orbits. It is easier for orbits with larger Jacobi constant to keep its periodic characteristics under the solar perturbation that gave a new thread to explain why small asteroids can have some satellites in far distance for long time.
Orbital dynamics with solar gravity perturbation in the vicinity of the irregular asteroids is studied in this paper. The motions in the gravity fields of 216 Kleopatra and 433 Eros, and the periodic orbits around the asteroids with perturbation of solar gravitation are analyzed to find a new family of periodic orbits of 216 Kleopatra. It is also found 12 families of periodic orbits as well as aboundednon-periodicorbit around 433 Eros and their topology and stability are studied in some details.The resultsshow that solar gravitation has little effect on the positions of asteroids equilibria in the body-fixed frame while has greatereffect on the motion of a spacecraft on the equilibria. The solar gravitation is not strong enough to increase or decrease the families of periodic orbits, nor is it able to change the stabilities of periodic orbits. It is easier for orbits with larger Jacobi constant to keep its periodic characteristics under the solar perturbation that gave a new thread to explain why small asteroids can have some satellites in far distance for long time.
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