The invention provides a space unfolding mechanism and unfolding method based on a shape memory polymer composite material. The unfolding mechanism comprises an alloy base, a 45-degree hinge and a rodpiece system. The rod piece system comprises a plurality of 180-degree hinges and a plurality of composite material hollow rod pieces; every two adjacent composite material hollow rod pieces are connected through a 180-degree hinge. A plurality of composite material hollow rod pieces of the space unfolding mechanism in the folded state are arranged in parallel from bottom to top; each of the 45-degree hinge and the 180-degree hinges comprises an alloy adapter and a sheet layer made of a shape memory polymer composite material, and the two ends of each sheet layer made of the shape memory polymer composite material are connected with the structures at the corresponding positions through alloy adapters respectively. According to the invention, the current situation that the practical application of the shape memory polymer composite material in a large deployable structure is less is changed, and the on-orbit task of the load can be realized.

    本发明提供了一种基于形状记忆聚合物复合材料的空间展开机构及展开方法,展开机构包括合金底座、45°铰链和杆件系统,杆件系统包括多个180°铰链和多根复合材料空心杆件,相邻的两根所述的复合材料空心杆件之间通过一个180°铰链连接,折叠状态下的空间展开机构的多根复合材料空心杆件从下到上平行设置,45°铰链和多个180°铰链均包括合金转换头和由形状记忆聚合物复合材料制成的片层,由形状记忆聚合物复合材料制成的所述片层的两端各通过一个合金转接头与相应位置处的结构连接。本发明改变了形状记忆聚合物复合材料在大型可展开结构中的实际应用较少的现状,能够实现负载的在轨任务。


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    Title :

    Space unfolding mechanism and unfolding method based on shape memory polymer composite material


    Additional title:

    基于形状记忆聚合物复合材料的空间展开机构及展开方法


    Contributors:
    LIU YANJU (author) / LIU LIWU (author) / ZENG CHENGJUN (author) / LIU TIANZHEN (author) / LENG JINGSONG (author)

    Publication date :

    2020-04-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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