Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Effects of Bearing Internal Clearance on the Load Distribution and Load Sharing in the Pitch Reducer for Wind Turbines

베어링 내부 틈새가 풍력발전기용 피치 감속기의 하중 분포와 하중 분할에 미치는 영향 분석

  • 김정길 (한국기계연구원 기계시스템안전연구본부) ;
  • 박영준 (한국기계연구원 기계시스템안전연구본부) ;
  • 이근호 (한국기계연구원 기계시스템안전연구본부) ;
  • 김재훈 (충남대학교 기계설계공학과)
  • Received : 2012.09.17
  • Accepted : 2012.10.24
  • Published : 2013.02.15
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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

References

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