Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Characteristics of Vibration Condition Indicator with Gear Tooth Damage

기어 손상에 따른 진동 상태표시기 특성 평가

  • Lee, Dong-Hyung (Fatigue and Fracture Research Team, Korea Railroad Research Institute) ;
  • Lee, Woong-Yong (Department of Railway System Engineering, University of Science & Technology) ;
  • Moon, Kyung-Ho (Advanced HSR Research Division, Korea Railroad Research Institute)
  • 이동형 (한국철도기술연구원 피로손상연구팀) ;
  • 이웅용 (과학기술연합대학원대학교 철도시스템공학과) ;
  • 문경호 (한국철도기술연구원 첨단고속철도연구실)
  • Received : 2015.06.02
  • Accepted : 2015.06.29
  • Published : 2015.07.01
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Abstract

In the development of a vibration-based condition monitoring system in gearbox, one of the most important research topics is a quantitative analysis and test of the effect of gear damage on vibration of gearbox. This paper presents the evaluation result of vibration condition indicator according to the gear tooth damage through the vibration test of gearbox. The dynamic load test was performed with high speed railway (KTX)'s gearbox. The vibration of gearbox was measured according to a rotational speed change with the common gear fault modes, such as pitting and tooth breakage. The characteristics and the possibility of applying of vibration condition indicator on condition monitoring system were analyzed. As a result, the value of most condition indicator is gradually increased with the severity of gear faults. The NA6 indicator shows a low variation with the rotational speed change and high sensitivity in accordance with the gear fault.

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References

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