The invention belongs to the technical field of solar sails, and particularly relates to a thermally-driven liquid crystal solar sail unfolding device. The liquid crystal solar sail unfolding device is formed by adhering a liquid crystal elastomer serving as a framework to a solar sail film; the shape of the light sail film comprises a large regular triangle and three small squares on the outer side of the regular triangle, and each square film and the triangular film are symmetrically arranged; the liquid crystal elastomer is in a strip shape, is of a double-layer film structure and is printed through a direct-writing type 3D printer, the bottom layer is horizontally printed, and the upper layer is vertically printed. When the temperature changes, the thermal expansion coefficients of the double-layer film are different, and the whole film is bent and deformed. The expansion degree can be regulated and controlled in a grading mode through different temperatures so that different requirements can be met; a high storage ratio is achieved on the premise that intelligent storage and unfolding functions are achieved; the structure is flexible and controllable, unfolding and folding of a certain sail face can be controlled, and the overall posture and the advancing direction are adjusted.

    本发明属于太阳光帆技术领域,具体为一种热驱动的液晶太阳光帆展开装置。本发明液晶太阳光帆展开装置由作为骨架的液晶弹性体粘附于光帆薄膜之上组成;光帆薄膜形状包括一个大的正三角形和在正三角形外侧三个小的正方形,每个正方形薄膜与三角形薄膜为对称排布;液晶弹性体为条带形状,是双层膜结构,用直写式3D打印机打印而成,底层水平打印,上层竖直打印;当温度变化时,双层膜的热膨胀系数不同,整体产生弯曲变形。本发明可通过不同的温度实现分级调控展开程度以达到不同的要求;在实现智能化收纳和展开功能的前提下拥有较高的收纳比;结构灵活可控,可以控制某一帆面的展开收束,调整整体的姿态和前进方向。


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    Title :

    Thermally-driven liquid crystal solar sail unfolding device


    Additional title:

    一种热驱动的液晶太阳光帆展开装置


    Contributors:
    XU FAN (author) / LI XINQI (author) / ZHANG XIAOLIANG (author)

    Publication date :

    2024-03-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... / B64G Raumfahrt , COSMONAUTICS



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