带挠性轴太阳帆板航天器姿态动力学研究

Attitude dynamics of solar wings on spacecraft with a flexible shaft

建立了带挠性轴太阳帆板航天器的物理模型 ,利用保守系统的 Lagrange方程 ,导出了带挠性轴太阳帆板航天器动力学方程 ,在小姿态角速率情况下 ,推出了航天器挠性轴扭转运动、航天器姿态运动的运动学方程 ,给出了数值结果 ,分析了太阳帆板转动惯量、挠性轴的扭转刚度对航天器姿态运动的影响。

In this paper,the physical model of solar wings on spacecraft with a flexible shaft is established. Dynamic equations of solar wings on spacecraft with a flexible shaft are derived by using Lagrange equation.Under conditions of small attitude angular velocities,the kinematic equations of the torsional motion of the flexible shaft and the attitude motion of the spacecraft are obtained. The numerical results are given.The influence of the torsional stiffness of a flexible shaft and the rotational inertia of solar wings on the attitude motion is analyzed.