A conceptual design for a double-gimbal reaction-wheel energy-wheel device which has three-axis attitude control and electrical energy storage capability is given. A mathematical model for the three-axis gyroscope (TAG) was developed, and a system of multiple units is proposed for attitude control and energy storage for a class of spacecraft. Control laws were derived to provide the required attitude-control torques and energy transfer while minimizing functions of TAG gimbal angles, gimbal rates, reaction-wheel speeds, and energy-wheel speed differences. A control law is also presented for a magnetic torquer desaturation system. A computer simulation of a three-TAG system for an orbiting telescope was used to evaluate the concept. The results of the study indicate that all control and power requirements can be satisfied by using the TAG concept. (Author)


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    Titel :

    A System for Spacecraft Attitude Control and Energy Storage


    Beteiligte:

    Erscheinungsdatum :

    1974


    Format / Umfang :

    78 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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