The invention discloses a folding solar sail with a large folding-unfolding ratio and a spacecraft, and the folding solar sail with the large folding-unfolding ratio comprises a solar sail film, a rotation driving device and a folding-unfolding driving device; the surface of the solar sail film is of a regular polygon structure, a fixing area is arranged in the center of the solar sail film and is in a similar polygon shape relative to the outer edge of the solar sail film, and the outer edge, facing the solar sail film, of the fixing area is equidistantly divided into multiple layers of geometrically similar folding areas. Diagonal lines of the solar sail film are alternately changed along the multiple layers of folding areas in a one-to-one correspondence mode, vertical lines are drawn from the top point of the fixing area to the outer edge of the solar sail film, and the vertical lines are alternately changed along the multiple layers of folding areas in a one-to-one correspondence mode in a valley folding mode and a mountain folding mode. The rotary driving device is used for driving the solar sail film to rotate; the folding and unfolding driving device is used for driving the outer edge of the solar sail film to move in the direction close to or away from the fixing area. According to the folding solar sail with the large folding-unfolding ratio, the folding-unfolding ratio can be effectively increased, and the reliability is high.
本发明公开了一种大折展比折叠太阳帆及航天器,其中,所述大折展比折叠太阳帆包括太阳帆薄膜、旋转驱动装置和折展驱动装置;太阳帆薄膜的表面设为正多边形结构,中心位置设有固定区,固定区相对太阳帆薄膜的外边缘呈相似多边形,沿固定区朝向太阳帆薄膜的外边缘等距划分为几何相似的多层折叠区,太阳帆薄膜的对角线沿多层折叠区一一对应设为山折和谷折的交替变化,沿固定区的顶点向太阳帆薄膜的外边缘作垂线,垂线沿多层折叠区一一对应设为谷折和山折的交替变化;旋转驱动装置用于驱动太阳帆薄膜旋转;折展驱动装置用于带动太阳帆薄膜的外边缘沿靠近或远离固定区的方向移动。本发明提供的大折展比折叠太阳帆能够有效提高折展比,可靠性高。
Folding solar sail with large folding-unfolding ratio and spacecraft
大折展比折叠太阳帆及航天器
2024-03-22
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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