Dynamical systems theory has been used to study nonlinear aircraft dynamics. A six degree of freedom model that neglects gravity has been analyzed. The aerodynamic model, supplied by NASA, is for a generic swept wing fighter and includes nonlinearities as functions of the angle of attack. A continuation method was used to calculate the steady states of the aircraft, and bifurcations of these steady states, as functions of the control deflections. Bifurcations were used to predict jump phenomena and the onset of periodic motion for roll coupling instabilities and high angle of attack maneuvers. The predictions were verified with numerical simulations.


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    Title :

    Application of dynamical systems theory to nonlinear aircraft dynamics


    Contributors:

    Publication date :

    1988-08-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English







    ANALYTICAL NONLINEAR ANALYSIS METHODOLOGY FOR REDUCED AIRCRAFT DYNAMICAL SYSTEMS

    Omran, A. / Newman, B. / International Council of the Aeronautical Sciences; Optimage Ltd | British Library Conference Proceedings | 2010