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    Hydrodynamic Model Fitting for Wave Energy Applications Using Moment-Matching: A Case Study


    Peña-Sanchez, Yerai and Faedo, Nicolás and Ringwood, John (2018) Hydrodynamic Model Fitting for Wave Energy Applications Using Moment-Matching: A Case Study. In: 28th International Ocean and Polar Engineering Conference, International Society of Offshore and Polar Engineers, 10-15 June 2018, Sapporo, Japan.

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    Abstract

    Several methods have been developed to identify a parametric model thatrepresents the radiation force convolution term in Cummins’ equation.The reason behind such an approximation is twofold: obtaining a modelwith less computational (effort) requirements, and easing model-basedcontrol design procedures. In this paper, a case study on the paramet-ric approximation of such a convolution term using frequency-domaindata is considered, based on recent advances in model order reductionby moment-matching. Both the force-to-motion and radiation impulseresponse dynamics are considered. The advantages of a moment-basedstrategy are discussed, while providing a comparison with well-knownexisting methods.

    Item Type: Conference or Workshop Item (Paper)
    Keywords: Radiation forces; Parametric form; Model order reduction; Frequency domain identification; Moment-matching;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Faculty of Science and Engineering > Research Institutes > Centre for Ocean Energy Research
    Item ID: 12426
    Depositing User: Professor John Ringwood
    Date Deposited: 10 Feb 2020 16:50
    Refereed: Yes
    Funders: Science Foundation Ireland (SFI)
    URI:

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