Short-term extreme response and fatigue damage of an integrated offshore renewable energy system

Li, Liang and Cheng, Zhengshun and Yuan, Zhiming and Gao, Yan (2018) Short-term extreme response and fatigue damage of an integrated offshore renewable energy system. Renewable Energy, 126. pp. 617-629. ISSN 0960-1481

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    Abstract

    his study addresses short-term extreme response and fatigue damage of an integrated wind, wave and tidal energy system. The integrated concept is based on the combination of a spar type floating wind turbine, a wave energy converter and two tidal turbines. Aero-hydro-mooring coupled analysis is performed in time-domain to capture the dynamic response of the combined concept in a set of environmental conditions. The mean up-crossing rate method is used to evaluate the extreme response, which takes advantage of an extrapolation method to reduce the simulation sample size. The cumulative fatigue damage is computed based on the S-N method. Simulation results show that the tower base fore-aft bending moment is improved, in terms of extreme value and fatigue damage. Nevertheless, the tension force of a mooring line is worsened. The mooring line bears increased maximum tension due to the tidal turbine thrust force and it is subjected to higher fatigue damage load as well.

    Author(s):Li, Liang ORCID logoORCID: https://orcid.org/0000-0002-8528-3171, Cheng, Zhengshun, Yuan, Zhiming ORCID logoORCID: https://orcid.org/0000-0001-9908-1813 and Gao, Yan
    Item type:Article
    ID code:63671
    Keywords:extreme response, fatigue damage, renewable energy, floating wind turbine, wave energy converter, tidal turbine, Naval architecture. Shipbuilding. Marine engineering, Renewable Energy, Sustainability and the Environment
    Subjects:Naval Science > Naval architecture. Shipbuilding. Marine engineering
    Department:Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering
    Depositing user: Pure Administrator
    Date deposited:10 Apr 2018 11:20
    Last modified:12 Sep 2019 08:35
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/63671
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