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http://dx.doi.org/10.7735/ksmte.2013.22.1.29

Effects of Bearing Internal Clearance on the Load Distribution and Load Sharing in the Pitch Reducer for Wind Turbines  

Kim, Jeong-Kil (한국기계연구원 기계시스템안전연구본부)
Park, Young-Jun (한국기계연구원 기계시스템안전연구본부)
Lee, Geun-Ho (한국기계연구원 기계시스템안전연구본부)
Kim, Jae-Hoon (충남대학교 기계설계공학과)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.22, no.1, 2013 , pp. 29-35 More about this Journal
Abstract
The pitch reducer consists of several planetary gearsets, and they should have good load distribution over gear tooth flank and load sharing among the planets to improve the durability. This work investigates how bearing internal clearances influence both the load distribution over the gear tooth flank and the planet load sharing. A whole system model is developed to analyze a pitch reducer. The model includes non-linear mesh stiffness of gears, non-linear stiffness of bearings. The results indicate that the face load factor and mesh load factor decrease, and the fatigue life of output shaft bearings increase as bearing internal clearances of output shaft decrease. Therefore, the internal clearance of output shaft bearing must be considered when designing the pitch reducer for wind turbines.
Keywords
Wind turbine; Pitch reducer; Load distribution; Load sharing; Gear mesh misalignment; Bearing;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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