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提出了一种新的太阳帆板遮挡计算方法,用于组合体航天器的能量平衡分析与计算。根据航天器轴线与帆板转轴垂直的几何关系,将其沿轴线离散化为若干平面的集合,将所分析的帆板离散化为点集,判断离散点沿太阳矢量逆向是否经过离散的舱体平面或其它帆板平面,以此确定遮挡关系。通过仿真计算得到不同入射太阳方向下某组合体对应的遮挡区域,结果表明,新方法适用于轴对称形状组合体航天器的帆板遮挡分析。
A new calculation method of solar windshield obstruction is proposed for energy balance analysis and calculation of combined spacecraft. According to the geometric relationship between the axis of the spacecraft and the vertical axis of the windsurfing board, it is discretized along the axis into a set of several planes. The analyzed windsurfing board is discretized into point sets to determine whether the discretized points pass through the discrete pods Plane or other windsurfing plane, in order to determine the occlusion relationship. The simulation results show that the corresponding occlusion region of a composite under different incident solar directions shows that the new method is suitable for the windsurfing analysis of the spacecraft with axisymmetric shape combination.