10.14489/td.2016.04.pp.013-020

2016, 04 April

DOI: 10.14489/td.2016.04.pp.013-020

Danilov V.N., Razygraev A.N., Tcukanov M.V.
THE SIMULATION MODELING THE CHARACTERISTICS OF A NORMAL LINEAR PROBE WITH THE PHASED ARRAY IN THE RADIATION CONDITION AT THE ULTRASONIC INSPECTION OF THE OBJECTS MADE OF AUSTENITIC STEELS IN THE TERMS OF INACCURATE INPUT DATA
(pp. 13-20)

Abstract. It is executed the imitative (conditional) simulation of basic characteristics of a normal linear probe with the phased array in the radiation condition at the ultrasonic technique of objects made of austenitic steels in the terms of inaccurate input data indispensable for focusing. The similar situation is possible when there are no sufficient items of information on the radial propagation paths of the signals, which are radiated each member of an array in the conditions of refraction, and also a lack of information about a change along the pathways of the value of a group velocity which is dependent on the propagation direction of an acoustic wave in the anisotropic medium. The wave velocity varied randomly during simulation. Related changes of a shape of the directivity pattern of the converter and the amplitude of its signal along the acoustic axis were examined.

Keywords: austenitic steel, probe with the phased array, radiation condition, directivity characteristic, beam axis, anisotropy, phase velocity, group velocity, variation of speed.

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V. N. Danilov, A. N. Razygraev, M. V. Tcukanov (JSC “RPA “CNIITMASH”, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Guliaev A. P. (1977). Metal science. Moscow: Metallurgia.
2. Klyuev V.V. (Ed.), Ermolov I. N., Lange Iu. V. (2006). Nondestructive testing. Handbook. In 8 volumes. Vol. 3. Ultrasonic inspection. 2nd Ed. (revised and complemented). Moscow: Mashinostroenie.
3. Aleshin N. P., Vadkovskii N. N., Volkova N. N. (1988). Ultrasonic testing of austenitic welds: analysis of the methods and recommendations of reliability improvement. Defektoskopiia, (2), pp. 43-59.
4. Brekhovskikh L. M., Godin O. A. (1989). Acoustics of layered media. Moscow: Nauka.
5. Danilov V. N. (1994). Calculation of the acoustic channel using flaw detector with direct transducers in transversely isotropic medium. Defektoskopiia, (6), pp. 3-14.
6. Merkulov L. G., Merkulova V. M. (1976). Lectures on ultrasound physics. Taganrog: TRTI.
7. Danilov V. N., Shkuratnik V. L., Sirota D. N. (1987). Peculiarities of measuring the speed of propagation of elastic waves in the rock mass. Izvestiia vuzov. Gornyi zhurnal, (4), pp. 1-4.
8. Current state and prospectives of non-destructive testing development on the Russian NPP. (1995). Moscow, St. Petersburg: NPO «CNIITMASH», NPO «NIKIMT».
9. Razygraev A. N., Razygraev N. P. (2006). Ultrasonic testing of austenitic welded piping connections Du300. Defektoskopiia, (10), pp. 59-72.
10. Method of ultrasonic testing of longitudinal welded joints of the pipeline tribes GTsK Du500 WWER-1000. (2005). Moscow: NPO «CNIITMASH».
11. Method of ultrasonic testing of discharge pipeline and cylindrical part of pressurizer of RU WWER-1000 in Balakovo NPP. (2011). Moscow: NPO «CNIITMASH».
12. Danilov V. N., Voronkova L. V. (2015). Fundamentals of the theory and application of some aspects of the phased array transducers. Moscow: Izdatel'skii dom «Spektr».
13. Felsen L., Markuvits N. (1978). Radiation and wave scattering. Vol. 1. Moscow: Mir.
14. Connolly G. D., Lowe M. J. S., Temple J. A. G., Rokhlin S. I. (2009). The application of Fermat’s principle for imaging anisotropic and inhomogeneous media with application to austenitic steel weld inspection. Proc. of the Royal Society, 465, pp. 3401-3423. doi: 10.1098/rspa.2009.0272
15. Danilov V. N., Voronkov I. V. (2013). Modelling backwall echo of a normal linear probe with the phased array. Kontrol'. Diagnostika, (7), pp. 27-34.
16. Danilov V. N., Voronkov I. V. (2010). Simulation of direct transducer with phased array in the radiation mode. Defektoskopiia, (7), pp. 3-17.
17. D'iakonov V. P. (1989). Handbook of algorithms and programs on BASIC language for PC. Moscow: Nauka.
18. Danilov V. N. (2015). About some features of formation of signals and definition of the size of a near field for a normal probes with piezoelectric plates and phased arrays. Part 2. Kontrol'. Diagnostika, (5), pp. 18-26. doi: 10.14489/td.2015.05.pp.018-026.

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DOI: 10.14489/td.2016.04.pp.013-020

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