With the advent of a space transportation system, size and weight characteristics of large space structures have increased resulting in an increase in the flexible nature of these structures. The kind of application in which these structures are needed usually requires high precision at the end position, and sometimes mode-vibration suppression. This will introduce the need for non-collocated control, making the controller design very difficult given the plant's non-minimum phase characteristic. The authors address the problem of controller design for stabilization purposes. Using a block diagonal form of the system, a decoupled adaptive pole placement algorithm is developed to deal with mode vibration suppression. Adaptiveness is a very important property of these systems in that components tuned for nominal operating conditions may cause instability when unknown high-frequency oscillations are present. Results are presented to show the behavior of the algorithm in both time and frequency domain.


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    Title :

    Active control of large space structures


    Additional title:

    Aktive Regelung großer Strukturen im Weltraum


    Contributors:
    Nebot, E.M. (author) / Lee, G.K.F. (author) / Brubaker, T.A. (author)

    Published in:

    Control and Computers ; 17 , 2 ; 42-47


    Publication date :

    1989


    Size :

    6 Seiten, 18 Quellen


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Active control technology for large space structures

    HYLAND, D. C. / JUNKINS, J. L. / LONGMAN, R. W. | AIAA | 1993


    Active Control Technology for Large Space Structures

    Hyland, D.C. | Online Contents | 1993