摘要
研究了带弹性伸展附件充液航天器姿态动力学问题，利用动量矩定理、动量矩守恒定律、牛顿运动定律导出液体运动方程、系统运动方程、弹性板质量微元运动方程，在板等速伸展的情况下，对极质量微元运动方程进行变换，通过尤格－库塔积分法求出极振动的振幅，再由系统运动方程求出航天器姿态角速率．
In this paper attitude dynamics of liquid-filled spacecraft with elastic appendagesis studied- Motional equations of liquid, motional equations of system and motionalequations of particle of elaJstic plates are obtained by using the theorem of angu-lar momentum, the conservation law of angular momentum and Newton's motionallaw. When elastic plates deploy at uniform velocity of plates motional equationsof plates are alternated. Using Runge-Kutta method, the plate's amplitudes ofvibration are obtained. Using motional equations of system,the attitude angularvelocities of spacecraft are obtained.
出处
《空间科学学报》
CAS
CSCD
北大核心
2000年第3期271-277,共7页
Chinese Journal of Space Science
基金
国家自然科学基金!19702011
中国航天工业集团公司中国空间科学技术研究院资助
关键词
充液航天器
弹性附件
姿态动力学
Liquid-filled spacecraft, Elastic appendage, Attitude dynamics
