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Time Domain Modeling and Analysis of Dynamic Gear Contact Force in a Wind Turbine Gearbox with Respect to Fatigue Assessment

Dong, Wenbin; Xing, Yihan; Moan, Torgeir
Journal article, Peer reviewed
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URI
http://hdl.handle.net/11250/2364742
Date
2012
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  • Institutt for marin teknikk [2418]
  • Publikasjoner fra CRIStin - NTNU [21056]
Original version
Energies 2012, 5(11):4350-4371   10.3390/en5114350
Abstract
The gearbox is one of the most expensive components of the wind turbine system. In order to refine the design and hence increase the long-term reliability, there has been increasing interest in utilizing time domain simulations in the prediction of gearbox design loads. In this study, three problems in time domain based gear contact fatigue analysis under dynamic conditions are discussed: (1) the torque reversal problem under low wind speed conditions, (2) statistical uncertainty effects due to time domain simulations and (3) simplified long term contact fatigue analysis of the gear tooth under dynamic conditions. Several recommendations to deal with these issues are proposed based on analyses of the National Renewable Energy Laboratory’s 750 kW land-based Gearbox Reliability Collaborative wind turbine.
Publisher
MDPI
Journal
Energies

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