Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)

The Korean Society for Nondestructive Testing (한국비파괴검사학회)
권호 표지
DOI QR코드

DOI QR Code

Quantitative NDE Thermography for Fault Diagnosis of Ball Bearings with Micro-Foreign Substances

미세 이물질이 혼입된 볼베어링의 고장 진단을 위한 정량화 열화상에 관한 비파괴평가 연구

  • 홍동표 (전북대학교 기계시스템공학부) ;
  • 김원태 (공주대학교 기계자동차공학부)
  • Received : 2014.06.30
  • Accepted : 2014.07.29
  • Published : 2014.08.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, a non-destructive evaluation (NDE) mothod is proposed for ball bearings contaminated with micro foreign substances, which were inserted into a ball bearing to create a defective specimen. The non-contact quantitative infrared thermographic technique was applied for NDE condition monitoring. Passive thermographic experiments were conducted to perform early fault diagnosis, for bearings operated at optimized torque status under a dynamic load condition. The temperature profiles for normal and defective specimens were quantitatively compared, and the thermographic data analyzed. Based on the NDE results, the temperature characteristics and abnormal fault detection of the ball bearing were quantitatively analyzed according to the rise in temperature.

본 고에서는 미세 이물질이 삽입된 볼베어링에 대하여 비파괴평가를 제안하였다. 비파괴평가 연구로서 동적인 하중조건하 회전체의 동작에 따른 고장 진단을 위해 비접촉식 정량화된 적외선 열화상 기법을 적용하였다. 이로부터 볼베어링에 대한 적정 체결조건을 설정하였고 고장 상태감시에 대한 수동형 열화상시험을 수행하였다. 본 연구로부터, 적외선 열화상 시험은 조기의 결함 진단을 평가하기 위해 정상 및 이물질이 삽입된 시편들로부터의 온도 프로파일링을 비교, 분석되었다. 연구의 비파괴검사 평가의 결과로써, 고장에 이르는 이상단계에 따른 볼베어링의 온도 특성이 정량적으로 분석되었다.

Keywords

References

  1. J. Kim and D. Yang, "Thermo-analysis of machining center main-axis thermo-displacement for infrared rays thermo-image camera," Proceedings of the Korean Society of Machine Tool Engineers Conference, pp. 125-130 (2001)
  2. R. A. Collacott, "Mechanical Fault Diagnosis and Condition Monitoring," Chapman and Hall, London (1977)
  3. A. E. Elsayed, "Knowledge based systems for machinery fault diagnosis," 6th IMAC, pp. 123-128 (1988)
  4. J. Woon, S. Kim, J. Yoo and J. Lee, "A study on the automatic diagnosis system of ball bearings for rotating machinery," Journal of the Korean Society of Mechanical Engineers, Vol. 19, No. 8, pp. 1787-1798 (1995)
  5. D. Kim, H. Yun, S. Yang, W. Kim and D. Hong, "Fault diagnosis of ball bearing within rotational machines using the infrared thermography method," Journal of the Korean Society for Nondestructive Testing, Vol. 30, No. 6, pp. 570-575 (2010)
  6. J. Seo, H. Yun, D. Kim, D. Hong and W. Kim, "Infrared thermographic diagnosis mechanism for fault detection of the ball bearing under dynamic loading conditions," Journal of the Korean Society for Nondestructive Testing, Vol. 31, No. 2, pp. 134-138 (2011)
  7. F. P. Incropera and D. P. DeWitt, "Fundamentals of Heat and Mass Transfer." 7th Ed., John Wiley & Sons, pp. 46-67 (2008)
  8. D. Yoon, O. Kwon and I. Jeong, "Monitoring of lubricacation conditions in journal bearing by acoustic emission," Proceedings of the Korean Society for Nondestructive Testing Fall Conference, Nov. 25, pp. 91-98 (1993)
  9. W. Kim, J, Seo and D. Hong, "Infrared thermographic inspection of ball bearing; condition monitoring for dects under dynamic loading stages," 18th WCNDT, Durban, Soth Africa (2012)
  10. H. Kim. D. Hong and W. Kim, "A study on real-time fault monitoring detection method of bearing using the infrared thermography," Journal of the Korean Society for Nondestructive Testing, Vol. 33, No. 4, pp. 111-117 (2013) https://doi.org/10.7779/JKSNT.2013.33.4.330

Cited by

  1. Comparison of FEA with Condition Monitoring for Real-Time Damage Detection of Bearing Using Infrared Thermography Techniques vol.35, pp.3, 2015, https://doi.org/10.7779/JKSNT.2015.35.3.185