This paper is a comparison between integral plus fuzzy logic control and LQR plus Hinfinity robust control as demonstrated on a flexible platform to improve space structure vibration control. Reusable launch vehicle components demand a micro-acceleration attenuation system, as opposed to stiffening these components at a tremendous weight cost. Also, these control systems are applicable to pointing/placing a payload in orbit. These systems will alleviate difficulties associated with the lack of an accurate pre-launch space structure dynamic model. An analysis of the open-loop characteristics of an isolated platform demands an investigation of both an integral plus fuzzy logic vibration controller and a robust vibration controller, an LQR inner loop and an Hinfinity outer loop. The benefits and limitations of these controllers are analyzed.


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    Title :

    Flexible space structure robust vibration control


    Contributors:

    Published in:

    Publication date :

    1999


    Size :

    5 Seiten, 7 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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