Journal of Failure Analysis and Prevention

, Volume 14, Issue 3, pp 363–371 | Cite as

Use of Spectral Kurtosis for Improving Signal to Noise Ratio of Acoustic Emission Signal from Defective Bearings

Technical Article---Peer-Reviewed

Abstract

The use of acoustic emission (AE) to monitor the condition of roller bearings in rotating machinery is growing in popularity. This investigation is centered on the application of spectral kurtosis (SK) as a denoising tool able to enhance the bearing fault features from an AE signal. This methodology was applied to AE signals acquired from an experimental investigation where different size defects were seeded on a roller bearing. The results suggest that the signal to noise ratio can be significantly improved using SK.

Keywords

Acoustic emission Signal to noise ratio Spectral kurtosis Roller bearings 

Notes

Acknowledgments

Financial support from the Marie Curie FP7-ITN project “Energy savings from smart operation of electrical, process and mechanical equipment-ENERGY-SMARTOPS,” Contract No: PITN-GA-2010-264940 is gratefully acknowledged.

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Copyright information

© ASM International 2014

Authors and Affiliations

  • C. Ruiz-Cárcel
    • 1
  • E. Hernani-Ros
    • 1
  • Y. Cao
    • 1
  • D. Mba
    • 1
  1. 1.School of EngineeringCranfield UniversityCranfieldUK

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