Deeper waters and harsher environments are the main factors that make the electricity generated by offshore wind turbines (OWTs) expensive due to high costs of the substructure, operation & maintenance and installation. The key goal of development is to decrease the cost of energy (CoE). In consequence, a rational treatment of uncertainties is done in order to assess the reliability of critical details in OWTs. Limit state equations are formulated for fatigue critical details which are not influenced by wake effects generated in offshore wind farms. Furthermore, typical bi-linear S-N curves are considered for reliability verification according to international design standards of OWTs. System effects become important for each substructure with many potential fatigue hot spots. Therefore, in this paper a framework for system effects is presented. This information can be e.g. no detection of cracks in inspections or measurements from condition monitoring systems. Finally, an example is established to illustrate the practical application of this framework for jacket type wind turbine substructure considering system effects.
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ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
June 9–14, 2013
Nantes, France
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5533-1
PROCEEDINGS PAPER
System Reliability for Offshore Wind Turbines: Fatigue Failure Available to Purchase
S. Márquez-Domínguez,
S. Márquez-Domínguez
Aalborg University, Aalborg, Denmark
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J. D. Sørensen
J. D. Sørensen
Aalborg University, Aalborg, Denmark
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S. Márquez-Domínguez
Aalborg University, Aalborg, Denmark
J. D. Sørensen
Aalborg University, Aalborg, Denmark
Paper No:
OMAE2013-10962, V02BT02A013; 10 pages
Published Online:
November 26, 2013
Citation
Márquez-Domínguez, S, & Sørensen, JD. "System Reliability for Offshore Wind Turbines: Fatigue Failure." Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. Volume 2B: Structures, Safety and Reliability. Nantes, France. June 9–14, 2013. V02BT02A013. ASME. https://doi.org/10.1115/OMAE2013-10962
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