Evaluation of mooring line degradation in floating offshore wind turbines : a comprehensive analysis of corrosion and fatigue under environmental impacts
Beer, Theresa Marie and Karpenko, Olena and Collu, Maurizio and Coraddu, Andrea; (2024) Evaluation of mooring line degradation in floating offshore wind turbines : a comprehensive analysis of corrosion and fatigue under environmental impacts. In: Proceedings of ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers (ASME), SGP. ISBN 9780791887790 (https://doi.org/10.1115/omae2024-126527)
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Abstract
As the demand for renewable energy grows, floating offshore wind turbines have become crucial, especially in deep water areas where traditional structures are impractical. These turbines need station keeping systems, which often consist in catenary mooring lines, making their durability vital against extreme weather conditions. While direct monitoring of these lines would be preferable, it is often unpractical due to high costs and maintenance. This research presents a new method to evaluate the degradation of mooring lines. The study investigates fatigue and corrosion behavior along the mooring lines by simulating environmental impacts, considering varied forces and weather patterns. Considering seawater’s oxygen and temperature, a distinct corrosion model is merged with fatigue performance predictions based on DNV standards. Mooring line loading conditions derived from environmental factors are then incorporated into a finite element model, assessing various load cases and corrosion’s role in line degradation. This comprehensive model examines the combined effects of corrosion (in particular, pitting corrosion) and fatigue, including hydrostatic pressure and out-of-plane bending on the performance of the mooring line chain in the offshore environment. The methodology’s validation relies on previous research and mooring line operational data.
ORCID iDs
Beer, Theresa Marie, Karpenko, Olena, Collu, Maurizio ORCID: https://orcid.org/0000-0001-7692-4988 and Coraddu, Andrea;-
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Item type: Book Section ID code: 90442 Dates: DateEvent9 August 2024Published16 February 2024AcceptedNotes: Copyright © 2024 by ASME Subjects: Naval Science > Naval architecture. Shipbuilding. Marine engineering
Technology > Electrical engineering. Electronics Nuclear engineering > Production of electric energy or powerDepartment: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 02 Sep 2024 15:41 Last modified: 01 Oct 2024 15:01 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/90442