The invention discloses an expandable truss mechanism based on a shape memory polymer composite material, and belongs to the technical field of deep space exploration equipment. The problems that a two-way capturing mechanism is insufficient in space and the carrying capacity of a carrier rocket is insufficient are solved. One group of shear fork beams in the shear fork units of the shear fork type truss body are connected through shape memory composite material hinges, and the other group of shear fork beams are connected through small connecting shafts. The bidirectional capturing mechanism has a large unfolding and folding ratio, and the problem that an existing bidirectional capturing mechanism is insufficient in space is solved; the adopted shape memory material is low in density, the prepared truss structure is light in weight, and the problem that the carrying capacity of a carrier rocket is insufficient is solved; after on-orbit expansion, the shape memory material is stiffened, the structure is high in rigidity, the on-orbit working requirement is met, the structure is simple, and other redundant supports are not needed.

    一种基于形状记忆聚合物复合材料的可展收桁架机构,属于深空探测设备技术领域。为了解决双向捕获机构空间不足,以及运载火箭运载能力不足的问题。剪叉式桁架主体的剪叉单元中一组剪叉梁之间由形状记忆复合材料铰链连接,另一组剪叉梁之间由小连接轴连接。本发明具有大的展开收拢比,解决现有双向捕获机构空间不足的问题;本发明采用的形状记忆材料密度低,制备的桁架结构质量轻,解决运载火箭运载能力不足的问题;本发明在轨展开后,形状记忆材料刚化,结构呈现高刚度,满足在轨工作需求,结构简单,无需其他多余支撑。


    Access

    Download


    Export, share and cite



    Title :

    Foldable truss mechanism based on shape memory polymer composite material


    Additional title:

    一种基于形状记忆聚合物复合材料的可展收桁架机构


    Contributors:
    LIU YANJU (author) / LIU LIWU (author) / LIU ZHENGXIAN (author) / ZHANG FENGHUA (author) / LI FENGFENG (author) / LENG JINSONG (author)

    Publication date :

    2024-06-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



    Truss type foldable space capsule based on shape memory polymer composite material

    LENG JINGSONG / LIU YANJU / MING GUANGQING et al. | European Patent Office | 2020

    Free access

    Preparation method of foldable fiber reinforced resin based composite truss, and truss

    LENG JINGSONG / LIU YANJU / MING GUANGQING et al. | European Patent Office | 2020

    Free access

    FOLDABLE TRUSS BOOM SECTION, TRUSS BOOM AND CRANE

    CUI DANDAN / SUN LI / YU QINWEI et al. | European Patent Office | 2021

    Free access

    Foldable truss boom section, truss boom and crane

    CUI DANDAN / SUN LI / YU QINWEI et al. | European Patent Office | 2022

    Free access

    Foldable solar wing based on shape memory material, working method of foldable solar wing and spacecraft

    LIU ZHENGXIAN / YANG JIANXIANG / LIU LIWU et al. | European Patent Office | 2024

    Free access