Fatigue reliability assessment of offshore wind turbines with stochastic availability

Jan-Tore Horn and Bernt J. Leira

Reliability Engineering and System Safety, 2019, vol. 191, issue C

Abstract: In this paper, the impact on lifetime estimation of an offshore wind turbine by introducing a stochastic model for the availability is investigated. Offshore bottom-fixed wind turbines typically have an average downtime of 4–10% due to e.g. grid- or mechanical failures including a potentially long response time for recovery. During the non-operational conditions, the fatigue damage in the foundation is accumulating significantly faster. Designing the wind farm based on a conservative downtime fraction will lead to design conservatism with respect to the foundation, which will be quantified in this paper using a structural reliability analysis.

Keywords: Offshore wind turbines; Reliability; Downtime; Fatigue (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (13)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:191:y:2019:i:c:s0951832018301492

DOI: 10.1016/j.ress.2019.106550

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