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    Parametric study of a vibro-impact wave energy converter

    Guo, Bingyong and Ringwood, John (2020) Parametric study of a vibro-impact wave energy converter. In: IFAC World Congress 2020, 11-17 July 2020, Berlin, Germany.

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    In this study, a non-linear vibro-impact mechanism is integrated inside a semisubmerged cylindrical heaving point absorber in order to enhance its power capture by utilising the non-linearity of vibro-impact events. A piece-wise linear model is derived considering linear wave-buoy interaction and the non-linear vibro-impact mechanism. Since the dynamics and performance of the vibro-impact wave energy converter (WEC) are sensitive to design parameters, a parametric study and analysis are conducted numerically by varying the design parameters in a broad range to evaluate their influence on the vibro-impact WEC’s dynamics and performance, in terms of response amplitude operator, average power output and peak-toaverage power ratio. Numerical simulations show that there exist some optimal sets of the design parameters to achieve a trade-off among the aforementioned performance indices. Hence, the parametric study in this paper can give some basic guidelines for optimising and prototyping the design of the vibro-impact WEC for wave tank testing.

    Item Type: Conference or Workshop Item (Paper)
    Additional Information: Funding: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 841388.
    Keywords: Wave Energy Conversion; Heaving Point Absorber; Vibro-Impact Mechanism; Non-linear Power Take-Off; Parametric Study;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Faculty of Science and Engineering > Research Institutes > Centre for Ocean Energy Research
    Item ID: 14333
    Depositing User: Professor John Ringwood
    Date Deposited: 13 Apr 2021 15:00
    Refereed: Yes
    Funders: European Union Horizon 2020 programme
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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