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Bearing defect diagnosis and acoustic emission.

By A. Morhain and David Mba

Abstract

Acoustic emission (AE) was originally developed for non-destructive testing of static structures, however, over the years its application has been extended to health monitoring of rotating machines and bearings. It offers the advantage of earlier defect detection in comparison to vibration analysis. However, limitations in the successful application of AE technique for monitoring bearings have been partly due to thedifficulty in processing, interpreting and classifying the acquired data. The investigation reported in this paper was centered on the application of standard acoustic emissions (AE) characteristic parameters on a radially loaded bearing. An experimental test-rig was modified such that defects could be seeded onto the inner and outer races of a test bearing. As the test-rig was adapted for this purpose it offered high background acoustic emission noise providing a realistic test for fault diagnosis. In addition to a review of current diagnostic methods for applying AE to bearing diagnosis, the results of this investigation validated the use of r.m.s, amplitude, energy and AE counts for diagnosis. Furthermore, this study determined the most appropriate threshold level for AE count diagnosis, the first known attempt

Publisher: Professional Engineering Publishing
Year: 2003
DOI identifier: 10.1243/135065003768618614
OAI identifier: oai:dspace.lib.cranfield.ac.uk:1826/1085
Provided by: Cranfield CERES
Journal:

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Citations

  1. (1979). Acoustic emission and transient waves in an elastic plate, doi
  2. (1989). Acoustic Emission Inspection, Physical Acoustics Corporation,
  3. (1988). Acoustic Emission monitoring of rolling element bearings, doi
  4. (2000). Acoustic emission of rolling bearings lubricated with contaminated grease, Tribology International, doi
  5. (1983). Acoustic emission, Gordon and Breach Science Publishers Inc.,
  6. (2000). Application of acoustic emission technique for the detection of defects in rolling element bearings, Tribology International, doi
  7. (1984). Application of acoustic emission technique to detection of rolling bearing failure,
  8. (2001). Condition monitoring of very slowly rotating machinery using AE techniques. 14th International congress on Condition monitoring and Diagnostic engineering management (COMADEM'2001), doi
  9. (1990). Defect Detection of Rolling Element Bearings by Acoustic Emission Method, doi
  10. (1979). New acoustic emission source locating system for the study of rolling contact fatigue, doi

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