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Publications
Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2019), “Reliability prediction of bearings of an offshore wind turbine gearbox”, Advances in Renewable Energies Offshore, Guedes Soares, C., (Ed.), Taylor & Francis, London, UK, pp. 779-787
A model is presented to estimate the failure rate of bearings of an offshore wind turbine gearbox based on data available for similar, known onshore wind turbine systems. The gearbox is one key element of the system since its failure may cause long downtime and consequently high operational and maintenance costs. Various research studies concluded that failure of bearings is predominant in gearbox failures, accounting approximately for 70% of total failures in gearboxes. First, a detailed Failure Mode and Effects Analysis is conducted and then the main Reliability Influencing Factors on the failure causes are identified. The reliability method is then illustrated stepwise to estimate total failure rate of a bearing of an offshore wind turbine gearbox.
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