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        Automatic Mass Balancing of Air-Bearing based Three-Axis Rotational Spacecraft Simulator

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        Author
        Kim, J.J.
        Agrawal, B.N.
        Date
        2009
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        Abstract
        Air-bearing-based spacecraft simulators are widely used to develop and verify spacecraft control techniques required by modern spacecraft applications. To create a spacelike environment with ground spacecraft simulators, the effects of gravity should be minimized. For a spherical air-bearing system with 3 rotational degrees of freedom, the center of rotation of the spacecraft simulator should be exactly aligned with the center of gravity. This paper presents the automatic mass balancing method, which compensates for the center of gravity offset from the center of rotation by actuating three proof masses on linear motion stages. Adaptive control of the automatic mass balancing system is used while the balancing masses are actuated in real time. The proposed techniques are implemented on the ground-based three-axis spacecraft simulator for the bifocal relay mirror spacecraft.
        Description
        The article of record as published may be found at http://dx.doi.org/10.2514/1.34437
        Rights
        This publication is a work of the U.S. Government as defined
in Title 17, United States Code, Section 101. As such, it is in the
public domain, and under the provisions of Title 17, United States
Code, Section 105, is not copyrighted in the U.S.
        URI
        http://hdl.handle.net/10945/34504
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        • Faculty and Researchers' Publications
        • Spacecraft Research and Design Center Publications

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        • Thumbnail

          Development of a Control Moment Gyroscope controlled, three axis satellite simulator, with active balancing for the bifocal relay mirror initiative 

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