An analysis is made of the dynamics of a thin, homogeneous, flexible square plate exposed to solar radiation disturbance. It is shown that only the first three flexible modes of the plate generate a first order net moment about the center of mass and that the solar radiation pressure does not influence the flexible modes of the plate for small-amplitude vibrations. In the absence of control, for a symmetrical homogeneous square platform, the solar radiation induces a steady angular drift about one of the body principal axes. For extremely flexible platforms, nominally oriented in the local horizontal plane, appreciable rigid modal amplitudes can be induced due to solar radiation, even in the presence of both active and passive control. Optimal control law and feedback gain values are obtained using linear quadratic Gaussian methods.


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    Title :

    Control of an orbiting flexible square platform in the presence of solar radiation


    Contributors:
    Bainum, P. M. (author) / Krishna, R. (author)

    Published in:

    Publication date :

    1985-09-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English