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Cone type Phased Array Design for High Speed Hollow Axle Inspection

  • To increase inspection speed and inspection reliability the use of phased array system is a superior solution. Especially for shaft inspection phased array setups are commonly used. For hollow axle inspection typically a number conventional probes rotating through the axles drilling are applied, without demounting the axes and without dismantling the wheels and the brake discs. A new approach using a cone type array operated in immersion technique will allows to increase inspection speed and reduce the mechanical effort of the inspection system by rotating the sound field for the circumferential scan electronically. Only a linear movement of the probe is necessary to move the phased array cone forward and backwards inside the drilling. By applying additional focal laws the beam can be inclined exactly and be focused in the plane vertical to the specimen axis to concentrate the sound in the zones close to the external surface of the railway axle. The cone type phased array probe hasTo increase inspection speed and inspection reliability the use of phased array system is a superior solution. Especially for shaft inspection phased array setups are commonly used. For hollow axle inspection typically a number conventional probes rotating through the axles drilling are applied, without demounting the axes and without dismantling the wheels and the brake discs. A new approach using a cone type array operated in immersion technique will allows to increase inspection speed and reduce the mechanical effort of the inspection system by rotating the sound field for the circumferential scan electronically. Only a linear movement of the probe is necessary to move the phased array cone forward and backwards inside the drilling. By applying additional focal laws the beam can be inclined exactly and be focused in the plane vertical to the specimen axis to concentrate the sound in the zones close to the external surface of the railway axle. The cone type phased array probe has been optimized to detect transversal flaws in and close to the outer surface of the hollow axle, whose surface lies in the radial-radial plane. The prototype probe system and its performance will be presented.zeige mehrzeige weniger

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  • 12 Session 4 Boehm Cone Type Phased Array Design.pdf
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Metadaten
Autor*innen:Rainer Boehm
Koautor*innen:Thomas Heckel, Michel Blanckschän, W. Spruch, T. Beggerow
Dokumenttyp:Vortrag
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2017
DDC-Klassifikation:Naturwissenschaften und Mathematik / Chemie / Analytische Chemie
Freie Schlagwörter:Cone Type Array; Hollow Axle Inspection; Phased Array; UT; Ultrasound
Veranstaltung:ESIS TC24 Workshop: Integrity of Railway Structures
Veranstaltungsort:Wittenberge, Germany
Beginndatum der Veranstaltung:25.09.2017
Enddatum der Veranstaltung:26.09.2017
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:17.10.2017
Referierte Publikation:Nein
Eingeladener Vortrag:Nein
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