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A Fuzzy-FMEA Risk Assessment Approach for Offshore Wind Turbines

Dinmohammadi, F., Shafiee, M. (2013) A Fuzzy-FMEA Risk Assessment Approach for Offshore Wind Turbines. International Journal of Prognostics and Health Management, 4 . pp. 1-10. ISSN 2153-2648. (KAR id:80276)

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Abstract

Failure Mode and Effects Analysis (FMEA) has been extensively used by wind turbine assembly manufacturers for risk and reliability analysis. However, several limitations are associated with its implementation in offshore wind farms: (i) the failure data gathered from SCADA system is often missing or unreliable, and hence, the assessment information of the three risk factors (i.e., severity, occurrence, and fault detection) are mainly based on experts’ knowledge; (ii) it is rather difficult for experts to precisely evaluate the risk factors; (iii) the relative importance among the risk factors is not taken into consideration, and hence, the results may not necessarily represent the true risk priorities; and etc. To overcome these drawbacks and improve the effectiveness of the traditional FMEA, we develop a fuzzy-FMEA approach for risk and failure mode analysis in offshore wind turbine systems. The information obtained from the experts is expressed using fuzzy linguistics terms, and a grey theory analysis is proposed to incorporate the relative importance of the risk factors into the determination of risk priority of failure modes. The proposed approach is applied to an offshore wind turbine system with sixteen mechanical, electrical and auxiliary assemblies, and the results are compared with the traditional FMEA.

Item Type: Article
Uncontrolled keywords: Failure Mode and Effects Analysis (FMEA); Offshore Wind Turbine; Risk Priority Number (RPN); Fuzzy Logic.
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA165 Engineering instruments, meters etc. Industrial instrumentation
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Depositing User: Mahmood Shafiee
Date Deposited: 27 Feb 2020 12:54 UTC
Last Modified: 28 Feb 2020 10:16 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/80276 (The current URI for this page, for reference purposes)
Shafiee, M.: https://orcid.org/0000-0002-6122-5719
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