Dynamic models for two space station configurations were derived. Space shuttle docking disturbances and their effects on the station and solar panels are quantified. It is shown that hard shuttle docking can cause solar panel buckling. Soft docking and berthing can substantially reduce structural loads at the expense of large shuttle and station attitude excursions. It is found predocking shuttle momentum reduction is necessary to achieve safe and routine operations. A direct model reference adaptive control is synthesized and evaluated for the station model parameter errors and plant dynamics truncations. The rigid body and the flexible modes are treated. It is shown that convergence of the adaptive algorithm can be achieved in 100 seconds with reasonable performance even during shuttle hard docking operations in which station mass and inertia are instantaneously changed by more than 100%.


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    Title :

    Space station dynamic modeling, disturbance accommodation, and adaptive control


    Contributors:
    Wang, S. J. (author) / Ih, C. H. (author) / Lin, Y. H. (author) / Metter, E. (author)


    Publication date :

    1985-04-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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