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eprints.whiterose.ac.uk article

Reliability analysis and prediction of wind turbine gearboxes - White Rose Research Online

https://eprints.whiterose.ac.uk/id/eprint/83336

# Reliability analysis and prediction of wind turbine gearboxes. This paper presents a reliability analysis model of wind turbine gearboxes by developing a generic gearbox configuration and modular structure. It encapsulates all the reliability critical components within the gearbox subsystem in a wind turbine. Reliability block diagrams of gearbox modules and components have been established by using Relex Reliability Analysis software. Results of failure rates and reliability of three generic gearbox configurations have been obtained. To improve the reliability prediction of wind turbine gearbox, an advanced prediction model based on failure modes and load carrying capability of individual components under operational conditions has been discussed. This research has highlighted the importance of validation of the reliability prediction models using available field failure data, which could be only possible through collaborations of wind farm owners, WT manufacturers, gearbox manufacturers, and bearing manufacturers. | Keywords: | Gearbox; Reliability; Wind turbine |. ### 2010 Smolders, Long, Feng, Tavner\_GearboxReliability (EWEC2010). 2010 Smolders, Long, Feng, Tavner\_GearboxReliability (EWEC2010).pdf.

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windsystemsmag.com article

Dynamic reliability estimation of wind-turbine gearboxes

https://www.windsystemsmag.com/dynamic-reliability-estimation-of-wind-turbine…

First, this method estimates wind-turbine gearbox reliability based on fatigue failure due to wear on the material. Bearing failure is defined

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docs.nlr.gov official

[PDF] Improving Wind Turbine Gearbox Reliability - Publications | NLR

https://docs.nlr.gov/docs/fy07osti/41548.pdf

Available electronically at http://www.osti.gov/bridge Available for a processing fee to U.S. Department of Energy and its contractors, in paper, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 phone: 865.576.8401 fax: 865.576.5728 email: mailto:reports@adonis.osti.gov Available for sale to the public, in paper, from: U.S. Department of Commerce National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 phone: 800.553.6847 fax: 703.605.6900 email: orders@ntis.fedworld.gov online ordering: http://www.ntis.gov/ordering.htm Printed on paper containing at least 50% wastepaper, including 20% postconsumer waste Improving Wind Turbine Gearbox Reliability Walt Musial Sandy Butterfield National Renewable Energy Laboratory National Renewable Energy Laboratory 1617 Cole Boulevard 1617 Cole Boulevard Golden, CO 80401 USA Golden, CO 80401 USA walter_musial@nrel.gov sandy_butterfield@rel.gov +1 303 384 6956 +1 303 384 6902 +1 303 384 6901 (fax) +1 303 384 6901 (fax) Brian McNiff McNiff Light Industry 46 Dog Island Road Harborside, ME 04642 USA brian@mcnifflight.com +1 207 326 7148 Summary This paper describes a new research and development initiative to improve gearbox reliability in wind turbines begun at the National Renewable Energy Laboratory (NREL) in Golden, Colorado, USA.

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