| 小行星的奇特动力学1） |
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| 引用本文： | 李俊峰,曾祥远,张韵.小行星的奇特动力学1）[J].力学与实践,2016,38(6):603-611. |
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| 作者姓名： | 李俊峰 曾祥远 张韵 |
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| 作者单位： | 1. 清华大学航天航空学院, 北京 100084;
2. 北京理工大学自动化学院, 北京 100081 |
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| 基金项目： | 2016-11-03收到修改稿 |
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| 摘 要： | 小行星数以百万计，有着千奇百怪的外形.无论是小行星自身长期演化、还是它们附近的绕飞物体，都有着奇特的动力学现象.介绍小行星研究现状和发展趋势，阐明影响小行星姿态轨道长期演化的重要作用--雅科夫斯基效应和YORP效应.概述小行星不规则引力场描述方法与其中复杂的周期轨道，尝试提炼其中的科学问题和研究方向.
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| 关 键 词： | 小行星 雅科夫斯基效应 YORP效应 不规则引力场 自然周期轨道 |
| 收稿时间： | 2016-10-28 |
UNIQUE DYNAMICS OF ASTEROIDS 1) |
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| LI Junfeng,ZENG Xiangyuan,ZHANG Yun.UNIQUE DYNAMICS OF ASTEROIDS 1)[J].Mechanics and Engineering,2016,38(6):603-611. |
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| Authors: | LI Junfeng ZENG Xiangyuan ZHANG Yun |
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| Institution: | 1. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China;
2. School of Automation, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Millions of asteroids are in various shapes, which show unique dynamical phenomena, including their own revolutions and the vicinal surrounding objects. This paper reviews the recent development of studies of asteroids. Significant effects on the long-term evolution of asteroids’ attitude and orbit are introduced, i.e., the Yarkovsky effect and the YORP effect. Modeling methods of their irregular gravitational fields are presented as well as naturally periodic orbits in complex universal curves. Some basic problems and potential research directions are suggested. |
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| Keywords: | asteroid Yarkovsky effect YORP effect irregular gravitational field naturally periodic orbits |
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