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Physics-based gearbox failure model for multi-mw offshore wind turbines

  • Marco Sepulveda
  • , Jonathan Shek
  • , Philipp R. Thies
  • , Erkan Oterkus
  • , Peter Davies
  • , Mark Spring
  • Lloyd's Register
  • University of Edinburgh
  • University of Exeter

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study proposes an analytical methodology to assess the risk to the operation of an offshore wind turbine in order to identify critical assemblies. The gearbox is one of the critical assemblies regarding maintenance costs and downtime. Failure investigation shows that the high speed shaft bearings are one of the gearbox components with a higher probability of fatigue damage. A physics-based model is developed to calculate the accumulated damage and to estimate the remaining useful life. The model is created for a 3 stage gearbox with two planetary and one parallel helical gear. This paper summarises the methodology and results of a damage accumulation calculation under a load spectrum derived from 1 year of SCADA data. The final results are consistent with the damage levels found in the failure investigation.

Original languageEnglish
Title of host publicationStructures, Safety and Reliability
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791857663
DOIs
StatePublished - 2017
EventASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017 - Trondheim, Norway
Duration: Jun 25 2017Jun 30 2017

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume3B-2017

Conference

ConferenceASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017
Country/TerritoryNorway
CityTrondheim
Period06/25/1706/30/17

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