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The Use of Acoustic Emission for Estimation of Bearing Defect Size

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Abstract

Vibration monitoring of rolling element bearings is possibly the most established diagnostic technique for rotating machinery. The application of Acoustic Emission (AE) for bearing diagnosis is gaining ground as a complementary diagnostic tool, however, limitations in the successful application of the AE technique have been partly due to the difficulty in processing, interpreting and classifying the acquired data. Furthermore, the extent of bearing damage has eluded the AE diagnostician. The investigation reported in this paper was centered on the application of the Acoustic Emission technique for identifying the size of a defect on a radially loaded bearing. An experimental test-rig was designed such that defects of varying sizes could be seeded onto the outer race of a test bearing. It was concluded that AE can provide an indication of the defect size, thus allowing the user to monitor the rate of degradation on the bearing.

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Authors and Affiliations

  1. School of Engineering, Cranfield University, Bedfordshire, MK43 0AL, UK

    D. Mba

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  1. D. Mba
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Correspondence to D. Mba.

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This article was originally published as “The Use of Acoustic Emission for Estimation of Bearing Defect Size” in Essential Technologies for Successful Prognostics, Proceedings of the 59th Meeting of the Society for Machinery Failure Prevention Technology, Society for Machinery Failure Prevention Technology, 2005, pp. 583–591, and is reprinted with permission.

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Mba, D. The Use of Acoustic Emission for Estimation of Bearing Defect Size. J Fail. Anal. and Preven. 8, 188–192 (2008). https://doi.org/10.1007/s11668-008-9119-8

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  • DOI: https://doi.org/10.1007/s11668-008-9119-8

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