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A.A. Markov, E.A. Maksimova, "Technique used to assess allowable speed of ultrasonic rail testing", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 10.27, 2022, doi:10.4203/ccc.1.10.27

Keywords: ultrasound, flaw detection, rails, high-speed testing, B-scan, signal parameters, integral parameter.

Abstract

The results of investigating the parameters of ultrasonic signals when increasing rail testing speed presented. Signals from rail bolt holes were selected as test reflectors. It is shown that the holes closest to the rail joints are not sounded fully, and signals due to them cannot be used as test reflectors. For a full assessment of the deterioration of the quality of nondestructive testing of rails with an increase in the scanning speed, it is proposed to use the integral parameter of the reflector being analyzed. A noticeable decrease in this parameter at high speeds requires a compromise decision when choosing between performance and quality of rail inspection. The proposed technique can be used to assess the efficiency of operating and newly created flaw detection systems.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 1 PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 10.27 Technique used to assess allowable speed of ultrasonic rail testing A.A. Markov and E.A. Maksimova Radioavionika JSC Saint Petersburg, Russia doi:10.4203/ccc.1.10.27 Full Bibliographic Reference for this paper A.A. Markov, E.A. Maksimova, "Technique used to assess allowable speed of ultrasonic rail testing", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 10.27, 2022, doi:10.4203/ccc.1.10.27 Keywords: ultrasound, flaw detection, rails, high-speed testing, B-scan, signal parameters, integral parameter. Abstract The results of investigating the parameters of ultrasonic signals when increasing rail testing speed presented. Signals from rail bolt holes were selected as test reflectors. It is shown that the holes closest to the rail joints are not sounded fully, and signals due to them cannot be used as test reflectors. For a full assessment of the deterioration of the quality of nondestructive testing of rails with an increase in the scanning speed, it is proposed to use the integral parameter of the reflector being analyzed. A noticeable decrease in this parameter at high speeds requires a compromise decision when choosing between performance and quality of rail inspection. The proposed technique can be used to assess the efficiency of operating and newly created flaw detection systems. download the full-text of this paper (PDF, 7 pages, 435 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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