Advertisement

Journal of Intelligent Manufacturing

, Volume 23, Issue 2, pp 189–203 | Cite as

A quantified index for bearing vibration analysis based on the resonance modes of mechanical system

  • Yuh-Tay Sheen
  • Yun-Hui Liu
Article

Abstract

In this paper, an envelope estimation algorithm based on the resonance modes of the mechanical system is proposed to apply in the signal processing for the bearing vibrations and the exponential decay frequency of the envelope signal could be further estimated to be a quantified index for the bearing vibration analysis. According to the vibration spectrum of the bearing system, the resonance frequencies in the range of the corresponding resonance modes could be initially designated and further estimated. Under the assumption of stepwise functions for the envelope signals in the corresponding resonance modes, the vibration signal could be decomposed into the sinusoidal function bases with fundamental frequencies at the resonance frequencies. The envelope signals could be derived from their corresponding resonance modes. In addition, the vibration signal could be directly reconstructed from the envelope signals to reject the low-frequency mechanical noise. According to the envelope signals, the exponential decay frequency is also estimated to be a quantified index for diagnosing the running condition of roller bearing. In the simulation study, the envelope spectra show good consistency between the proposed method and the high frequency resonance technique. Finally, the experimental study shows that the envelope estimation algorithm could be effectively applied in the signal processing for the bearing vibrations and the exponential decay frequency could successfully be a quantified index for the bearing defect diagnosis.

Keywords

Envelope estimation Resonance frequency Bearing vibration Quantified index 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bendat J. S., Piersol A. G. (1971) Random data analysis and measurement procedures. Wiley, New York, p 258Google Scholar
  2. McFadden P. D., Smith J. D. (1984) Vibration monitoring of roller element bearing by the high-frequency resonance technique—A review. Tribology International 17: 3–10CrossRefGoogle Scholar
  3. Sheen Y.-T. (2006) 3D spectrum analysis for vibration signals by wavelet-based demodulation. Mechanical Systems and Signal Processing 20(4): 843–853CrossRefGoogle Scholar
  4. Sheen Y.-T. (2007) An analysis method for the vibration signal with amplitude modulation in a bearing system. Journal of Sound and Vibration 303(3-5): 538–552CrossRefGoogle Scholar
  5. Sheen Y.-T. (2008) An envelope detection method based on the first vibration mode of bearing vibration. Measurement 41(7): 797–809CrossRefGoogle Scholar
  6. Sheen Y.-T., Hung C.-K. (2004) Constructing a wavelet-based envelope function for vibration signal analysis. Mechanical Systems and Signal Processing 18(1): 119–126CrossRefGoogle Scholar
  7. Su Y.-T., Lin S.-J. (1992) On initial fault detection of tapered roller bearing: Frequency domain analysis. Journal of Sound and Vibration 155: 75–84CrossRefGoogle Scholar
  8. Su Y.-T., Lin M.-H., Lee M.-S. (1993) The effect of surface irregularities on roller bearing vibrations. Journal of Sound and Vibration 162: 455–466CrossRefGoogle Scholar
  9. Su Y.-T., Sheen Y.-T., Lin M.-H. (1992) Signature analysis of roller vibrations: Lubrication effects. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 206: 193–202CrossRefGoogle Scholar
  10. Su Y.-T., Sheen Y.-T. (1993) On the detectability of roller bearing damage by frequency analysis. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 207: 23–32CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringSouthern Taiwan UniversityYung Kang CityTaiwan, ROC

Personalised recommendations