Inspection of transverse flaws for railways using phased array ultrasonic technique

A tétel rövid nézete
dc.contributor.authorBenzer, Hajar
dc.contributor.authorKhamlichi, Abdellatif
dc.contributor.authorZakriti, Alia
dc.contributor.statusnemhu_HU
dc.date.accessioned2021-06-08T12:06:25Z
dc.date.available2021-06-08T12:06:25Z
dc.date.issued2021-08
dc.description.abstractRail monitoring is an important activity which aims to preserve the safety and availability of railways. According to statistics, the primary cause of railway accidents is due to transverse defects that occur in the rail head. These special defects develop generally in a plane orthogonal to the rail running direction. The detection of these defects is a priority to increase the safety of rail transportation. Rail control monitoring techniques mostly rely on infrared thermography, eddy currents, air-coupled acoustic sensors, and ultrasounds. The present research studies the rail diagnosis by means of a non-contact device. The focus is on ultrasonic based methods where excitation is generated by thermal elastic coupling following laser irradiation of the rail head. For the reception of echoes, a special ultrasound sensor was used. In order to sense defects, phased array elements, which use multiple transducers and electronic time delays, are used to increase and to focalise the signal intensity. Flaws that have a moderate extension are better detected by the proposed method than with laser irradiation consisting of a single spot.hu_HU
dc.identifier.doi10.1556/1848.2020.00187hu_HU
dc.identifier.issn2062-0810
dc.identifier.issue2hu_HU
dc.identifier.jtitleInternational Review of Applied Sciences and Engineering
dc.identifier.urihttp://hdl.handle.net/2437/310805
dc.identifier.urlhttps://akjournals.com/view/journals/1848/12/2/article-p119.xmlhu_HU
dc.identifier.volume12hu_HU
dc.language.isoenhu_HU
dc.publisherAkadémiai Kiadóhu_HU
dc.subjecttransverse flawshu_HU
dc.subjectphased arrayhu_HU
dc.subjectultrasound sensorhu_HU
dc.subjectrotational laser vibrometerhu_HU
dc.titleInspection of transverse flaws for railways using phased array ultrasonic techniquehu_HU
Fájlok
Eredeti köteg (ORIGINAL bundle)
Megjelenítve 1 - 1 (Összesen 1)
Nincs kép
Név:
_20634269___International_Review_of_Applied_Sciences_and_Engineering__Inspection_of_transverse_flaws_for_railways_using_phased_array_ultrasonic_technique.pdf
Méret:
1.56 MB
Formátum:
Adobe Portable Document Format
Letöltés
Engedélyek köteg
Megjelenítve 1 - 1 (Összesen 1)
Nincs kép
Név:
license.txt
Méret:
2.57 KB
Formátum:
Item-specific license agreed upon to submission
Leírás:
Letöltés
Gyűjtemények
International Review of Applied Sciences and Engineering