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Damage equivalent wind–wave correlations on basis of damage contour lines for the fatigue design of offshore wind turbines

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  • Passon, Patrik

Abstract

An adequate representation of the site-specific wind–wave joint distribution is essential for cost-efficient and reliable designs of offshore wind turbines. Therefore, the wind and wave climates are subjected to a correlation of wind and wave parameters for design purposes. These correlations are often based on a lumping of the directional wave climate and subsequent association of the lumped wave climate to the directional wind climate. Preservation of the hydrodynamic fatigue distribution from the full wave climate is an important aspect in the wind-wave correlation process which requires an adequate consideration of the dynamics from the offshore wind turbine. However, only a few wind-wave correlation methods exist for the fatigue design of offshore wind turbines and none of them take the dynamics of the full structure adequately into account. In this study a new wind-wave correlation method has been developed and introduced. The new method is based on the establishment of damage contour lines which are used to determine the sea-state parameters that ensure simultaneous compliance with damage equivalency criterions at different locations within the offshore wind turbine. This simultaneous damage equivalency throughout the structure together with the straightforward derivation of the corresponding damage equivalent sea-state parameters constitutes the novelty of the presented wind-wave correlation method.

Suggested Citation

  • Passon, Patrik, 2015. "Damage equivalent wind–wave correlations on basis of damage contour lines for the fatigue design of offshore wind turbines," Renewable Energy, Elsevier, vol. 81(C), pages 723-736.
    • Handle: RePEc:eee:renene:v:81:y:2015:i:c:p:723-736
    DOI: 10.1016/j.renene.2015.03.070
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    Cited by:

    1. Pim van der Male & Marco Vergassola & Karel N. van Dalen, 2020. "Decoupled Modelling Approaches for Environmental Interactions with Monopile-Based Offshore Wind Support Structures," Energies, MDPI, vol. 13(19), pages 1-35, October.
    2. Gee-Nam Lee & Duc-Vu Ngo & Sang-Il Lee & Dong-Hyawn Kim, 2023. "Fatigue Life Convergence of Offshore Wind Turbine Support Structure According to Wind Measurement Period," Energies, MDPI, vol. 16(7), pages 1-14, April.
    3. Liu, Wenyi, 2016. "Design and kinetic analysis of wind turbine blade-hub-tower coupled system," Renewable Energy, Elsevier, vol. 94(C), pages 547-557.
    4. Marino, Enzo & Giusti, Alessandro & Manuel, Lance, 2017. "Offshore wind turbine fatigue loads: The influence of alternative wave modeling for different turbulent and mean winds," Renewable Energy, Elsevier, vol. 102(PA), pages 157-169.
    5. Ju, Shen-Haw & Su, Feng-Chien & Ke, Yi-Pei & Xie, Min-Hsuan, 2019. "Fatigue design of offshore wind turbine jacket-type structures using a parallel scheme," Renewable Energy, Elsevier, vol. 136(C), pages 69-78.

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