The problems of rigid-flexible coupling dynamics modeling and control are proved to be hard to resolve owing to the large size and super-flexible structure of the solar sail spacecraft. This paper utilizes moment of momentum theorem to deduce rigid-flexible coupling dynamics equations including the attitude dynamics and vibration equations for super-flexible solar sail spacecraft with control vanes, and then the dynamics equations solutions of solar sail on super-synchronous transfer orbit are presented combining with the unconstrained modes conception. Based on the proposed dynamics models, the PD control law incorporating the Bang-Bang control technique is designed to study the yaw axis earth-pointing problems of solar sail. Simulation results demonstrate that the solutions of the rigid-flexible coupling dynamics equations can truly describe the dynamical characteristics of the solar sail spacecraft and the attitude controller can perform the yaw axis earth-pointing mission exactly and quickly.


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    Title :

    Attitude dynamics modeling and control of large flexible solar sail spacecraft


    Contributors:
    Liu Jiafu, (author) / Rong Siyuan, (author) / Li Jianguo, (author) / Cui Naigang, (author)


    Publication date :

    2010-06-01


    Size :

    795781 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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