A gain-scheduled controller for active flutter suppression of the NASA Langley Research Center's Benchmark Active Controls Technology wing section is presented. The wing section changes significantly as a function of Mach and dynamic pressure and is modeled as a linear system whose parameters depend in a linear fractional manner on Mach and dynamic pressure. The resulting gain-scheduled controller also depends in a linear fractional manner on Mach and dynamic pressure. Stability of the closed-loop is demonstrated via time simulations in which both Mach and dynamic pressure are allowed to vary in the presence of input disturbances. The linear fractional gain-scheduled controller and an optimized linear controller (designed for comparison) both achieve closed-loop stability throughout the operating region.


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    Title :

    Active flutter suppression via gain-scheduled linear fractional control


    Contributors:
    Barker, J.M. (author) / Balas, G.J. (author) / Blue, P.A. (author)

    Published in:

    Publication date :

    1999


    Size :

    5 Seiten, 16 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English