Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
권호 표지

Study on Detection Technique for Outer-race Fault of the Ball Bearing in Rotary Machinery

회전기기 볼베어링의 외륜 결함 검출 기법 연구

  • 정래혁 (충북대학교 안전공학과) ;
  • 이병곤 (충북대학교 안전공학과) ;
  • 이도환 (한국전력공사 전력연구원)
  • Received : 2009.11.16
  • Accepted : 2010.05.17
  • Published : 2010.06.30
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Abstract

Ball bearings are one of main components that support the rotational shaft in high speed rotary machinery. So, it is very important to detect the incipient faults and fault growth of bearing since the damage and failure of bearing can cause a critical failures or accidents of machinery system. In the past, many researchers mainly performed to detect the bearing fault using traditional method such as wavelet, statistics, envelope etc in vibration signals. But study on the detection technique for bearing fault growth has a little been performed. In this paper, we verified the possibility for monitoring of fault growth and detection of fault size in bearing outer-race by using the envelope powerspectrum and probabilistic density function from measured vibration signals.

Keywords

Acknowledgement

Supported by : 충북대학교

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