Evaluation of the Reliability of NDTesting in Russian Railway Transport

Vera Konshina; Gregory Dymkin; Alexandr Shevelev; Gerd-Rüdiger Jaenisch

doi:10.3139/120.110608

Article

Evaluation of the Reliability of NDTesting in Russian Railway Transport

Vera Konshina , Gregory Dymkin , Alexandr Shevelev and Gerd-Rüdiger Jaenisch

Published/Copyright: September 28, 2014

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From the journal Materials Testing Volume 56 Issue 9

Abstract

Algorithms to estimate ultrasonic testing method based on the integrated use of indicators of reliability and accuracy are presented, and built according to the nature of techniques, features of their application and evaluation purposes (comparison of techniques, introduction of new methods, test procedures, etc.). On the basis of the main revision of ISO 5725-1, 5725-2 the estimation of reproducibility and repeatability of measured characteristics determine the design of reflectors and real defects, and thus the reliability of non-destructive testing, including ultrasonic inspection of railways.

Kurzfassung

Es werden Algorithmen zur Untersuchung von Ultraschallverfahren basierend auf integralen Größen wie Zuverlässigkeit und Genauigkeit vorgestellt, die die Art der verwendeten Techniken, ihre Anwendung in der Praxis und den Zweck der Untersuchung berücksichtigen (Vergleich von Techniken, Einführung neuer Methoden und Prüfanweisungen, usw.). Die Revision der Standards ISO 5725-1, ISO 5725-2 gibt die Bestimmung von Reproduzierbarkeit und Wiederholbarkeit gemessener Charakteristiken, das Design von Reflektoren und realer Fehler vor und bestimmt somit die Zuverlässigkeit zerstörungsfreier Verfahren, einschließlich der Ultraschallprüfung im Eisenbahnwesen.

*Correspondence Address Vera Konshina PGUPS Dep. MPNK Moskovskiy pr. 9, 190031 St. Petersburg, Russia E-mail: vera.konshina@gmail.com

Vera Konshina, born 1961, studied NDT at the Petersburg State Transport University, Russia and finished her PhD thesis in the field of reliability of non-destructive testing and ultrasonic testing of welded joints in 2000. In 1986 she joined the department “Methods and instruments of NDT” at the Petersburg State Transport University, Russia. Additionally, she works in the field of accreditation.

Prof. Gregory Dymkin, born 1949, studied acoustics at the St.-Petersburg Electrotechnical University, Russia. He finished his PhD in 1978 and his Dr. Sci. in 1992 in the field of surface and guided waves in ultrasonic non-destructive testing. Since 1972 he works in the Research Institute for Bridges and NDT of the Federal Agency of Railway Transport. He deals with research and design of UT technologies and instruments, standardization and certification procedures for railroads. Since 2004 he is the head of department “Methods and instruments of NDT” at the Petersburg State Transport University, Russia.

Alexander Shevelev, born 1971, graduated from the Petersburg State Transport University, Russia. Since 1995 he works at the Research Institute of Bridges and NDT of the Federal Agency for Railway Transport. In 2002 he finished his PhD in the field of methods for testing and diagnostics in mechanical engineering.

Gerd-Rüdiger Jaenisch, born 1963, studied physics at the Dresden University of Technology, Germany and finished his PhD in the field of theoretical nuclear physics in 1992. Since 1992 he works with the Federal Institute for Materials Research and Testing (BAM) in the division for NDT in the field of modeling and 3D data reconstruction. In 2001 he finished his habilitation at the Dresden University of Technology, Germany in the field of material sciences and since 2002 he is lecturer at the Faculty of Mechanical Science and Engineering. Currently he works in the field “Radiological Models and Algorithms” in the division “Radiological Methods” at BAM.

References

1 GOST 27.202:1983: Reliability in technique. Technological systems. Methods of reliability evaluation by parameters of product quality.Search in Google Scholar

2 DIN ISO 5725-2:2002–12: Accuracy (trueness and precision) of measurement methods and results – Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method.Search in Google Scholar

Published Online: 2014-09-28

Published in Print: 2014-09-01

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https://doi.org/10.3139/120.110608