The contents of the paper stem from a preliminary inquiry into the problem of modelling a surface ship in irregular seas as a nonlinear, time-invariant system when its motions are large. The main objective of the study is to introduce to the naval architectural profession the Wiener theory of nonlinear systems and to evaluate its potential in the solution of such problems. After a brief historical review, the basic results of the theory are summarized and attention is fixed to explicit, time-domain, functional representations of the output of a nonlinear system in terms of input. The Volterra and Wiener kernels and their transforms are defined and methods for their determination are briefly mentioned. It is then shown how the output of such a system can be characterized when the input is periodic, aperiodic or random. The paper concludes with example applications to ship motion problems and a discussion of several issues associated with this type of analysis. Among tip items discussed are the wave-induced ship resistance in random seas, uncoupled nonlinear motions, such as roll, and the extension of the theory to multi-input, multi-output systems.


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    Titel :

    The application of statistical theory of nonlinear systems to ship motion performance in random seas1


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.02.1967


    Format / Umfang :

    12 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Schlagwörter :



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