The problem of computing open-loop, on-off jet firing logic for flexible spacecraft in the face of plant modeling uncertainty is investigated. The primary control objective is to achieve a fast maneuvering time with a minimum of structural vibrations during and/or after a maneuver. This paper is also concerned with the problem of selecting a proper pair of jets for practical trade-offs among the maneuvering time, fuel consumption, structural mode excitation, and performance robustness. A time-optimal control problem subject to parameter robustness constraints is formulated. A three-mass-spring model of flexible spacecraft with a rigid-body mode and two flexible modes is used to illustrate the concept.


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    Titel :

    On actuator placement for robust time-optimal control of uncertain flexible spacecraft


    Beteiligte:
    Wie, Bong (Autor:in) / Sinha, Ravi (Autor:in) / Liu, Qiang (Autor:in)

    Kongress:

    AIAA Guidance, Navigation and Control Conference ; 1992 ; Hilton Head Island, SC, United States


    Erscheinungsdatum :

    01.01.1992


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch