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Inspection of locomotive bearing rings by the acoustic-emission method

  • Acoustic Methods
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Abstract

The results of testing the bearing rings (BRs) of a locomotive axle box by the acoustic-emission (AE) method are presented. The small size of the localization zone of BRs leads to a significant spread of the coordinates of flaws even at minimal errors of the time of arrival of AE signals at piezoelectric-antenna probes. To refine the testing technique, the maximum testing load necessary for initializing AE signals is determined. Deformations in BRs are measured with a strain-gauging system related to the AE system. During recording of AE signals, the mechanical stresses are measured, thus allowing rejection of parasitic signals and an increase in the localization accuracy.

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References

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Authors and Affiliations

  1. Siberian State University of Railways, ul. D. Koval’chuk 191, Novosibirsk, 630049, Russia

    L. N. Stepanova, E. S. Tenitilov & S. A. Beher

Authors
  1. L. N. Stepanova
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  2. E. S. Tenitilov
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  3. S. A. Beher
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Corresponding author

Correspondence to L. N. Stepanova.

Additional information

Original Russian Text © L.N. Stepanova, E.S. Tenitilov, S.A. Beher, 2009, published in Defektoskopiya, 2009, Vol. 45, No. 9, pp. 49–55.

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Stepanova, L.N., Tenitilov, E.S. & Beher, S.A. Inspection of locomotive bearing rings by the acoustic-emission method. Russ J Nondestruct Test 45, 631–635 (2009). https://doi.org/10.1134/S106183090909006X

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  • DOI: https://doi.org/10.1134/S106183090909006X

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