Asteroid rotation control via a tethered solar sail

被引：5

作者：

Gao, Youtao ^{[1
]}

Wu, Jingyun ^{[2
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Astronaut, Nanjing 210016, Jiangsu, Peoples R China

[2] AreoX Technol Co Ltd, Shenzhen 518000, Peoples R China

来源：

ADVANCES IN SPACE RESEARCH | 2016年 / 58卷 / 11期

基金：

高等学校博士学科点专项科研基金;

关键词：

Solar sail; Asteroid rotation; Tethered system; Optimal control; Gauss pseudospectral method; YARKOVSKY; DESIGN; MITIGATION; SPACECRAFT; DEFLECTION; IMPACTS;

D O I：

10.1016/j.asr.2016.08.016

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The rotation of asteroids causes difficulties in the exploration of asteroids or prevention of asteroids impact on the Earth. We propose to use a solar sail to control, i.e., slow down or stop the rotational motion of an asteroid. First, the dynamic model of a tethered solar sail in the rotating gravitational field of an asteroid is presented. An optimal control method is employed to determine the control law of the tethered solar sail. The optimal control problem is converted into a nonlinear programming problem with the Gauss pseudospectral method. Simulation results show that this method can effectively slow down or even stop the rotation of an asteroid. A solar sail of 10(5) m(2) can stop the rotation of the asteroid Apophis in 1000 days. (C) 2016 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：2304 / 2312

页数：9

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