Abstract The numerical evaluation and optimization of the feedback controller parameters of the model-based control implemented in the flying helicopter simulator is subject of this paper. The German Aerospace Center operates this helicopter as a flying testbed for numerous applications, e.g., pilot assistance and in-flight simulation. Initially, the elements of the model-based control are presented. A genetic algorithm and the Nelder–Mead simplex method used for optimization are described. Two simple objective functions to rate parameter sets in the time domain are presented, and a $ Simulink^{®} $ model of the helicopter dynamics and the controller structure are used to find optimized sets. The first function, called “Delta Rating”, consists of a normalized integral of the absolute error between commanded and measured states. The second function incorporates the Delta Rating, but is enhanced by a penalty on overshoots. The controllers found are further evaluated using a frequency domain approach consisting of a weighted sum of the differences in amplitude and phase, also considering the coherence at the corresponding frequency. Apart from the $ Simulink^{®} $ model, a ground-based simulator is used to evaluate the standard and the optimized controllers.


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    Titel :

    Model-based control of the flying helicopter simulator: evaluating and optimizing the feedback controller


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2011




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    50.03 Methoden und Techniken der Ingenieurwissenschaften / 50.03 Methoden und Techniken der Ingenieurwissenschaften, Methoden und Techniken der Ingenieurwissenschaften / 55.50 Luftfahrzeugtechnik / 55.50 Luftfahrzeugtechnik, Luftfahrzeugtechnik
    DDC:    629.105




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    Pausder, H.-J. / Butter, U. / Gollnick, V. | British Library Conference Proceedings | 1996




    Key Technologies for a New Flying Helicopter Simulator

    Gmelin, B. / Mansfeld, G. / Kissel, G. et al. | British Library Conference Proceedings | 1991