Study of regularities in the formation of wave fields from acoustic emission sources in an elastic rod. Part 3. The radiation axisymmetric Pochhammer-Cree waves from the fields of coherent sources of acoustic emission noise
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Abstract
Quantitative estimates of the frequency-dependent effects in the excitation axisymmetric Pohgamera Cree waves from the field pointing emitting acoustic emission noise sources. Modelling studies of the two field configurations of coherent sources is presented. Two configurations are formed by sampling part of the cross section of the rod. The fact that the outer part of the sample cross-section of the rod forms a field of the sources exciting few normal Pochhammer Cree waves is shown. The fact that it has a negative impact on the results of the calibration receiver noise of acoustic emission is shown. A new way of preparing samples for calibration of acoustic emission receiver noise is proposed.
Reference 4, figures 7.
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References
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Karpus V.V., Petrishchev O.N. (2014), “Study of regularities in the formation of wave fields from acoustic emission sources in an elastic rod. Part 2. Green's function of the axisymmetric component of the acoustic emission noise in elastic rods”. Electronics and Communications, No1, Pp.109—117(Rus)
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