航空学报 > 2010, Vol. 31 Issue (8): 1565-1571

太阳帆航天器动力学建模与求解

崔乃刚, 刘家夫, 荣思远   

  1. 哈尔滨工业大学 航天学院
  • 收稿日期:2009-09-01 修回日期:2009-09-28 出版日期:2010-08-25 发布日期:2010-08-25
  • 通讯作者: 崔乃刚

Solar Sail Spacecraft Dynamic Modeling and Solving

Cui Naigang, Liu Jiafu, Rong Siyuan   

  1. School of Astronautics, Harbin Institute of Technology
  • Received:2009-09-01 Revised:2009-09-28 Online:2010-08-25 Published:2010-08-25
  • Contact: Cui Naigang

摘要: 太阳帆航天器动力学建模与求解是姿态控制与结构振动抑制的基础,具有重要的理论与工程意义。针对带有控制杆和控制叶片的太阳帆航天器,进行结构的合理简化。应用矢量力学基本原理,推导出考虑弹性振动的太阳帆航天器姿态动力学方程,再对其进行简化,分别得到基于控制叶片和控制杆的两类太阳帆航天器的姿态动力学方程,联立太阳帆支撑杆振动方程,结合非约束模态的定义对运行于超地球同步转移轨道的太阳帆航天器动力学方程进行了求解及分析,结果表明所建立的太阳帆动力学模型可准确地描述柔性太阳帆航天器的动力学特性。

关键词: 航天器, 太阳帆, 控制杆, 控制叶片, 非约束模态, 动力学求解

Abstract: Solar sail spacecraft dynamic modeling and solving are the basis of attitude control and structural vibration suppression, and they are of important theoretical and engineering significance. This article makes a reasonable simplification of the structure of a solar sail spacecraft with a control boom and control vanes, and applies the basic principles of vector mechanics to deduce the attitude dynamic formulations of the solar sail spacecraft which takes into consideration its flexible vibration, and then simplifies them, thus obtaining respectively the attitude dynamic formulations of the two types of solar sail spacecraft, those with control vanes, and those with control booms. By combining them with the vibration formulations of solar sail support beams and incorporating the definitions of unconstrained modes, the article succeeds in solving and analyzing the dynamic formulations of solar sail spacecraft on earth super-synchronous transfer orbit. The result indicates that the solar sail dynamic models presented in this article can truly describe flexible solar sail spacecraft dynamical characteristics.

Key words: spacecraft, solar sail, control boom, control vane, unconstrained mode, dynamics sovling

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