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Detecting hazardous sources of acoustic-emission signals using the estimated energy of clusters

  • Acoustic Methods
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Russian Journal of Nondestructive Testing Aims and scope Submit manuscript

Abstract

A method for detecting hazardous sources of acoustic-emission (AE) signals by the level of their energy activity using clustering by digitized signal shape was considered. The influence of the distance between a source and an AE transducer on the energy of recorded AE signals was analyzed. The energy distribution median of signals in a cluster was proposed for evaluating the hazard of an AE signal source. The application of the developed method was tested based on the example of the analysis of AE inspection data on the welding of steel specimens with incomplete fusion and a crack at the root of a weld seam. This testing confirms the results of the fractographic inspection of a defective weld seam.

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References

  1. Ser’eznov, A.N., Stepanova, L.N., Lebedev, E.Yu., et al., Acoustic-Emission Study of the Possibilities of Localizing Flaws of a Weld Joint during Cooling, Defektoskopiya, 2009, no. 5, pp. 25–33 [Russ. J. Nondestr. Test. (Engl. Transl.), 2009, vol. 45, no. 5, pp. 310–316].

  2. Stepanova, L.N., Lebedev, E.Yu., Kabanov, S.I., et al., Acoustic-Emission Quality Inspection of a Welded Seam during Its Cooling, Kontrol’. Diagnostika, 2009, no. 3., pp. 61–67.

  3. Stepanova, L.N., Ser’eznov A.N., Kabanov S.I., et al., RF Patent 2300761, Byull. Izobret., 2007, no. 2.

  4. Pugachev, V.S., Teoriya veroyatnostei i matematicheskaya statistika (Probability Theory and Mathematical Statistics), Moscow: Fizmatlit, 2002.

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Authors and Affiliations

  1. Siberian State Railway University, Novosibirsk, 630049, Russia

    L. N. Stepanova & K. V. Kanifandin

  2. Siberian Aviation Research Institute, Novosibirsk, 630051, Russia

    I. S. Ramazanov

Authors
  1. L. N. Stepanova
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  2. I. S. Ramazanov
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  3. K. V. Kanifandin
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Corresponding author

Correspondence to L. N. Stepanova.

Additional information

Original Russian Text © L.N. Stepanova, I.S. Ramazanov, K.V. Kanifandin, 2010, published in Defektoskopiya, 2010, Vol. 46, No. 9, pp. 64–73.

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Stepanova, L.N., Ramazanov, I.S. & Kanifandin, K.V. Detecting hazardous sources of acoustic-emission signals using the estimated energy of clusters. Russ J Nondestruct Test 46, 676–683 (2010). https://doi.org/10.1134/S106183091009007X

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  • DOI: https://doi.org/10.1134/S106183091009007X

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