首页 | 本学科首页   官方微博 | 高级检索  
     


Single-Axis Solar Orientation of a Satellite of the Earth
Authors:V. N. Likhachev  V. V. Sazonov  A. I. Ul'yashin
Affiliation:(1) Lavochkin Research and Industrial Corporation, Khimki, Moscow oblast, Russia;(2) Russian Academy of Sciences, Keldysh Institute of Applied Mathematics, Miusskaya pl., 4, Moscow, 125047, Russia
Abstract:
The possibility of using the mode of single-axis solar orientation is considered for a satellite placed into a nearly circular orbit with an altitude of 900 km and bearing a solar sail. The satellite (together with the sail) has an axisymmetric structure, its symmetry axis being the principal central axis of the maximum moment of inertia. The center of the sail pressure lies on this axis and is displaced with respect to the satellite's center of mass. The symmetry axis of the satellite is set to the Sun so that its center of mass would be located between the Sun and the pressure center and would rotate around this axis with an angular velocity of a few degrees per second. The satellite's axis of symmetry makes a slow precession under the action of the gravitational moment and the moment of light pressure forces. Though the maximum magnitudes of these moments are comparable, the moment of the light pressure forces dominates and controls the precession in such a way that the symmetry axis orientation to the Sun remains unchanged.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号