A Continuous Robust Control Strategy for the Active Aeroelastic Vibration Suppression of Supersonic Lifting Surfaces

    Authors

    K. Zhang; Z. Wang; A. Behal;P. Marzocca

    Comments

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    Abbreviated Journal Title

    Int. J. Aeronaut. Space Sci.

    Keywords

    Nonlinear aeroelastic control; model-free control; robust and neural; control; Supersonic aerodynamic; Engineering, Aerospace

    Abstract

    The model-free control of aeroelastic vibrations of a non-linear 2-D wing-flap system operating in supersonic flight speed regimes is discussed in this paper. A novel continuous robust controller design yields asymptotically stable vibration suppression in both the pitching and plunging degrees of freedom using the flap deflection as a control input. The controller also ensures that all system states remain bounded at all times during closed-loop operation. A Lyapunov method is used to obtain the global asymptotic stability result. The unsteady aerodynamic load is considered by resourcing to the non-linear Piston Theory Aerodynamics (PTA) modified to account for the effect of the flap deflection. Simulation results demonstrate the performance of the robust control strategy in suppressing dynamic aeroelastic instabilities, such as non-linear flutter and limit cycle oscillations.

    Journal Title

    International Journal of Aeronautical and Space Sciences

    Volume

    13

    Issue/Number

    2

    Publication Date

    1-1-2012

    Document Type

    Article

    Language

    English

    First Page

    210

    Last Page

    220

    WOS Identifier

    WOS:000209176900006

    ISSN

    2093-274X

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