We present in this paper an approach to large angle rotational maneuvers of a spacecraft-beam-tip body (an antenna or a reflector) configuration based on nonlinear invertibility and linear feed-back stabilization. A control law is derived to obtain independent decoupled control of attitude angles, lateral elastic deflections, slopes due to bending and angular deflection due to torsion at the tip of the beam using torquers and force actuators. For the stabilization of the elastic oscillations, a linear feedback control law, is obtained based on a linearized model about the terminal state augmented with a servo-compensator. Simulation results obtained for single axis control, for simplicity, show that large slewing and elastic mode stabilization can be accomplished in spite of uncertainty in the system using the total control.


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    Title :

    Nonlinear attitude control of elastic spacecraft-antenna system


    Additional title:

    Nichtlineare Lageregelung einer elastischen Raumfahrzeug-Antennensystems


    Contributors:
    Singh, S.N. (author)

    Published in:

    Publication date :

    1986


    Size :

    6 Seiten, 4 Bilder, 13 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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