With the development of the space industry and the demand of future complex space missions, large space deployable antennas require high deployable ratio, high precision, and lightweight. A large parabolic cylindrical deployable (PCD) mechanism with a multilayer tape-spring (MLTS) hinge was proposed. The energy method was adopted to establish the equivalent dynamic model of the large PCD mechanism with MLTS hinges. The new problems encountered in the dynamic analysis of the new mechanism are solved. First, the nonlinear effects of the tape-spring hinges and cable in the PCD mechanism were considered. The relationship equations of strain and kinetic energy were derived. Then, the stiffness and mass matrices of the PCD mechanism were obtained. Based on Timoshenko beam theory, the modal analysis of the PCD mechanism in cantilever state was conducted. The finite element method was used to verify the correctness of the equivalent continuum model of the large PCD mechanism with MLTS hinges. The equivalent dynamic analytical method can be applied to the spatial large deployable mechanism.


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    Title :

    Equivalent Dynamic Model for Large Parabolic Cylindrical Deployable Mechanism


    Contributors:
    Yang, Hui (author) / Feng, Jian (author) / Wang, Yan (author) / Xiao, Hong (author) / Liu, Yongbin (author)

    Published in:

    AIAA Journal ; 60 , 12 ; 6739-6752


    Publication date :

    2022-12-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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