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Screening of Available Tools for Dynamic Mooring Analysis of Wave Energy Converters

Author

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  • Jonas Bjerg Thomsen

    (Department of Civil Engineering, Aalborg University, Thomas Manns Vej 23, Aalborg Ø 9220, Denmark)

  • Francesco Ferri

    (Department of Civil Engineering, Aalborg University, Thomas Manns Vej 23, Aalborg Ø 9220, Denmark)

  • Jens Peter Kofoed

    (Department of Civil Engineering, Aalborg University, Thomas Manns Vej 23, Aalborg Ø 9220, Denmark)

Abstract

The focus on alternative energy sources has increased significantly throughout the last few decades, leading to a considerable development in the wave energy sector. In spite of this, the sector cannot yet be considered commercialized, and many challenges still exist, in which mooring of floating wave energy converters is included. Different methods for assessment and design of mooring systems have been described by now, covering simple quasi-static analysis and more advanced and sophisticated dynamic analysis. Design standards for mooring systems already exist, and new ones are being developed specifically forwave energy converter moorings, which results in other requirements to the chosen tools, since these often have been aimed at other offshore sectors. The present analysis assesses a number of relevant commercial software packages for full dynamic mooring analysis in order to highlight the advantages and drawbacks. The focus of the assessment is to ensure that the software packages are capable of fulfilling the requirements of modeling, as defined in design standards and thereby ensuring that the analysis can be used to get a certified mooring system. Based on the initial assessment, the two software packages DeepC and OrcaFlex are found to best suit the requirements. They are therefore used in a case study in order to evaluate motion and mooring load response, and the results are compared in order to provide guidelines for which software package to choose. In the present study, the OrcaFlex code was found to satisfy all requirements.

Suggested Citation

  • Jonas Bjerg Thomsen & Francesco Ferri & Jens Peter Kofoed, 2017. "Screening of Available Tools for Dynamic Mooring Analysis of Wave Energy Converters," Energies, MDPI, vol. 10(7), pages 1-18, June.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:7:p:853-:d:102731
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    References listed on IDEAS

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    1. Aamo, O.M. & Fossen, T.I., 2000. "Finite element modelling of mooring lines," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 53(4), pages 415-422.
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    Cited by:

    1. Jonas Bjerg Thomsen & Francesco Ferri & Jens Peter Kofoed & Kevin Black, 2018. "Cost Optimization of Mooring Solutions for Large Floating Wave Energy Converters," Energies, MDPI, vol. 11(1), pages 1-23, January.
    2. Gomes, Rui P.F. & Gato, Luís M.C. & Henriques, João C.C. & Portillo, Juan C.C. & Howey, Ben D. & Collins, Keri M. & Hann, Martyn R. & Greaves, Deborah M., 2020. "Compact floating wave energy converters arrays: Mooring loads and survivability through scale physical modelling," Applied Energy, Elsevier, vol. 280(C).
    3. Xu, Sheng & Wang, Shan & Guedes Soares, C., 2019. "Review of mooring design for floating wave energy converters," Renewable and Sustainable Energy Reviews, Elsevier, vol. 111(C), pages 595-621.
    4. Luca Martinelli & Barbara Zanuttigh, 2018. "Effects of Mooring Compliancy on the Mooring Forces, Power Production, and Dynamics of a Floating Wave Activated Body Energy Converter," Energies, MDPI, vol. 11(12), pages 1-24, December.

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    1. Josh Davidson & John V. Ringwood, 2017. "Mathematical Modelling of Mooring Systems for Wave Energy Converters—A Review," Energies, MDPI, vol. 10(5), pages 1-46, May.

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