Development of a phased array inspection system for the testing of railway solid axles from the end face

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Development of a phased array inspection system for the testing of railway solid axles from the end face

Liaptsis, Dimosthenis / Avramidis, Stavros / Yan, Dawei / Hankinson, Neil / Michau, Stephane / Ngyendinh, An / Castro, Ivan / Lobato, Kenneth / Dominguez, Javier / Broujeni, Sam

Abstract

The developed semi-automated solid axle scanner and PA ultrasonic testing technique is a working prototype that satisfies the requirements for the inspection of the railway solid axles from the end face. It can be mounted on a variety of axle box designs and axle end face diameters, and it requires minimal disassembly of the train bogie. Extensive ultrasonic modelling was carried out to design a PA probe that is capable of meeting the inspection and defect detection requirements as well as being suitable for a variety of axle end face diameters. The probe has been manufactured and tested, and there was an excellent correlation between the experimental and simulation results. The laboratory testing using the innovative PA probe shows that it is capable of detecting a 1mm deep EDM notch positioned at the critical areas of the axle. The 1 mm EDM notch has been detected in both the pulse-echo and pitch-catch inspection modes. This flexibility can provide additional detection capabilities that can assist in the full characterisation of any defects detected. Overall, the PAUT testing shows that a high signal-to-noise ratio can be achieved using the completed solid axle inspection system. The modular design of the solid axle scanner allows the scanner to be mounted on a wide range of train axle box designs. The scanner is lightweight and can be fitted easily in the train axle box. The scanner has a number of tools that allow the probe to be positioned and adjusted accurately on the surface of the axle end face.

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Dokumentinformationen

Titel :

Development of a phased array inspection system for the testing of railway solid axles from the end face

Beteiligte:

Liaptsis, Dimosthenis (Autor:in) / Avramidis, Stavros (Autor:in) / Yan, Dawei (Autor:in) / Hankinson, Neil (Autor:in) / Michau, Stephane (Autor:in) / Ngyendinh, An (Autor:in) / Castro, Ivan (Autor:in) / Lobato, Kenneth (Autor:in) / Dominguez, Javier (Autor:in) / Broujeni, Sam (Autor:in)

Erschienen in:

NDT, Annual Conference of The British Institute of Non-Destructive Testing, 52 ; 1-12

Erscheinungsdatum :

2013

Format / Umfang :

12 Seiten, 10 Bilder, 24 Quellen

ISBN :

978-0-903132-56-7

Medientyp :

Aufsatz (Konferenz)

Format :

Datenträger