Equations of motion aexibly connected dual-spin spacecraft equipped with four pendulumlike passive controllers for mass balance and spin axis control. These equations are constrained and used to determine the conditions required for successful steady-state operation of the controllers with a spinning, rigid-body spacecraft. Generalized controller sizing criteria are derived and related to limiting values of system time constant for an example spacecraft unbalance condition. A generalized real-time computer simulation of a large, slowly spinning rigid-body spacecraft equipped with passive controllers is also presented. Numerical results of this simulation show that passive controllers can successfully balance a class of rotating rigid bodies undergoing large internal mass and inertial disturbances. The ratio of total controller mass to spacecraft mass need not be greater than 1 to 2 percent. (Author)


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    Title :

    A Passive Balancer for a Class of Rotating Spacecraft


    Contributors:
    C. W. Martz (author) / C. Grantham (author)

    Publication date :

    1972


    Size :

    99 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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