A new ride control system using a neural optimal controller (NOC) is developed and applied to improve the heave and pitch motion responses of two twin-hull vessels operating in regular head seas. A time domain model for the vessel dynamics in the presence of active fin control is used to simulate the vessel and fin motion responses. An on-line switching procedure is introduced to select among a number of linear quadratic regulator optimal controllers, designed for different operating conditions of the vessel, to improve the system robustness. Although the on-line switching offered better robustness and performance characteristics, in between switching operating points, it still remained suboptimal. Therefore, an artificial neural network (ANN) controller was developed as an alternative and initially trained lo emulate the same level of control at a number of design operating points, as a NOC. The advantage of this novel application is that practical difficulties in applying an on-line switching procedure are no longer present and, more importantly, the ANN has been capable of nonlinear generalization to give a near optimal solution away from the trained operating conditions.


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    Titel :

    A new-generation motion-control system for twin-hull vessels using a neural optimal controller


    Weitere Titelangaben:

    Ein Bewegungssteuerungssystem für Doppelrumpfschiffe einer neuen Generation, das neurale Optimalsteuerungseinrichtungen verwendet


    Beteiligte:
    Kenevissi, F. (Autor:in) / Atlar, M. (Autor:in) / Mesbahi, E. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2003


    Format / Umfang :

    13 Seiten, 32 Bilder, 3 Tabellen, 42 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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