| 摘要 |
PURPOSE:To reduce the thermal stress upon a framework and a panel sheet after a solar generator is extended in the space by a method wherein a panel sheet is provided with tension only when it is retracted utilizing auxiliary beams fitted with elastic bodies. CONSTITUTION:The height of one auxiliary beams 8a supported by vertical beams 2b is more than the half height of horizontal beams 2a while the height of the other auxiliary beam 8b is less than the half height of the horizontal beams 2a. When this solar generator is retracted by hinges 3, a flexible panel sheet 1 fitted with solar battery cells 4 is deformed to provide itself with tension. Moreover, the panel sheet 1 under any vibration load may be prevented from vibrating since the movement of the panel sheet 1 is restricted by elastic bodies 9 fixed on the auxiliary beams 8a, 8b. After the solar generator is extended in the space, the panel sheet 1 may be deprived of the tension to reduce the thermal stress due to solar heat. |
