TY - JOUR A1 - Wüstenberg, Hermann A1 - Erhard, Anton A1 - Schenk, Gottfried A1 - Montag, Hans-Joachim T1 - Anwendung der Ultraschalltomographie an Turbinen und Generatorwellen JF - Materialprüfung = Materials testing T2 - 12. MPA-Seminar CY - Stuttgart, Deutschland DA - 1986-10-16 PY - 1987 SN - 0025-5300 VL - 29 IS - 10 SP - 297 EP - 302 PB - Carl Hanser Verlag CY - München AN - OPUS4-18764 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Brekow, Gerhard A1 - Erhard, Anton A1 - Schulz, Eduard A1 - Montag, Hans-Joachim A1 - Pörtzgen, N. T1 - BAM-RTD Phased Array Konzept für die Schweißnahtprüfung von Rohrleitungen T2 - ZfP in Anwendung, Entwicklung und Forschung - Jahrestagung 2002 N2 - Zusammenfassung Aus den Messergebnissen geht hervor, dass der Real-Time-Scanner den Reflektor-nachweis der konventionellen Prüfköpfe hinsichtlich des erreichten S/R-Abstandes erreicht und teilweise übertrifft. Weiterhin geht aus den Ergebnissen hervor, dass die Nachweisempfindlichkeit sehr empfindlich auf Abweichungen der Prüfkopf-positionierung reagiert. Nur wenn die optimale Fahrspur für jede Reflektortiefenlage getroffen wird, kann mit den konventionellen Prüfköpfen ein S/R-Abstand von mehr als 20 dB erreicht werden. Das bedeutet, dass mit den konventionellen Prüfköpfen immer mehrere parallele Fahrspuren mit kleinem Spurversatz gefahren werden müssen, um auch kleine Fehler in der Schweißnaht nachweisen zu können. Mit dem Real-Time-Scanner-Prüfkopf können mit einer einzigen Messfahrt und mit entsprechend vielen angepassten Messfunktionen mehrere parallele Fahrspuren durch elektronisch gesteuerte Bündelverschiebung erfasst werden. T2 - Jahrestagung Zerstörungsfreie Materialprüfung 2002 CY - Weimar, Deutschland DA - 2002-05-06 KW - Pipelines KW - Schweißnahtprüfung KW - Gruppenstrahlertechnik KW - Real-Time-Scanner KW - Gruppenstrahler-Prüfkopf mit 64 Schwingerelementen KW - Konventionelle Winkelprüfköpfe PY - 2002 UR - http://www.ndt.net/article/dgzfp02/papers/p10/p10.htm SN - 3-931381-39-0 N1 - Serientitel: Berichtsband / Deutsche Gesellschaft für zerstörungsfreie Prüfung e. V. – Series title: Berichtsband / Deutsche Gesellschaft für zerstörungsfreie Prüfung e. V. IS - 80-CD PB - DGZfP CY - Berlin AN - OPUS4-1852 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schenk, Gottfried A1 - Montag, Hans-Joachim A1 - Wüstenberg, Hermann A1 - Erhard, Anton T1 - Entwicklung und Anwendungsmöglichkeiten eines rechnergestützten Gruppenstrahlerkonzepts für die Ultraschall-Prüfung JF - Amts- und Mitteilungsblatt der Bundesanstalt für Materialprüfung PY - 1985 SN - 0340-7551 VL - 15 IS - 4 SP - 509 EP - 514 PB - Bundesanstalt für Materialprüfung CY - Berlin AN - OPUS4-34226 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erhard, Anton A1 - Schenk, Gottfried A1 - Möhrle, Walter A1 - Montag, Hans-Joachim A1 - Wüstenberg, Hermann T1 - Experiences with a New Real-Time-Scanner System T2 - ASNT Fall-Conference T2 - ASNT Fall-Conference CY - Seattle, WA, USA DA - 1996-10-14 PY - 1996 AN - OPUS4-18869 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schulz, Eduard A1 - Erhard, Anton A1 - Montag, Hans-Joachim A1 - Beine, U. A1 - Lucht, B. T1 - Fehleranalyse an einer austenitischen Rohrschweißnaht T2 - ZfP in Anwendung, Entwicklung und Forschung - Jahrestagung 2001 T2 - Jahrestagung Zerstörungsfreie Materialprüfung 2001 CY - Berlin, Deutschland DA - 2001-05-21 PY - 2001 UR - http://www.ndt.net/article/dgzfp01/papers/p10/p10.htm N1 - Serientitel: Berichtsband / Deutsche Gesellschaft für zerstörungsfreie Prüfung e. V. – Series title: Berichtsband / Deutsche Gesellschaft für zerstörungsfreie Prüfung e. V. IS - 75-CD PB - DGZfP CY - Berlin AN - OPUS4-1141 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Pohl, Rainer A1 - Erhard, Anton A1 - Montag, Hans-Joachim A1 - Thomas, Hans-Martin A1 - Wüstenberg, Hermann ED - Forde, M. C. T1 - NDT techniques for railroad wheel and gauge corner inspection T2 - Railway engineering 2002 T2 - 5th Railway Engineering Conference CY - London, England, UK DA - 2002-07-03 KW - Non-destructive testing method KW - Ultrasonic and eddy current techniques KW - Railway track and wheel inspection PY - 2002 SN - 0-947644-49-0 SP - 1 EP - 14(?) PB - Engineering Technics Press CY - Edingburgh AN - OPUS4-1561 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pohl, Rainer A1 - Erhard, Anton A1 - Montag, Hans-Joachim A1 - Thomas, Hans-Martin A1 - Wüstenberg, Hermann T1 - NDT techniques for railroad wheel and gauge corner inspection JF - NDT & E international N2 - The development of non-destructive techniques (NDT) techniques for the in-service inspection of railroad wheels and gauge corners was the main activity of the NDT division VIII. 4 at BAM over the last 2 years. For such different components, two different inspection techniques were fundamentally chosen in order to fulfil the end-user requirements. Firstly the inspection of the wheels—rim and disk—should be carried out without dismantling the wheels and using ultrasonic techniques. On the other hand, the inspection of the railroad track surface at a train speed of about 70 km/h should be guaranteed using eddy current techniques. The above-mentioned tasks were a challenge for the lab staff. The accessibility for the wheel inspection was limited due to several impassable barriers such as sand tubes, etc. Eddy current application focused mainly on the detection of head check defects occurring at the gauge corner of the rail. Investigations carried out also showed, that other types of surface defects (e.g. Belgrospis, wheel burns, short-pitch corrugations, etc.) could easily be detected. Some aspects of the inspection system as well as an overview of test results are presented in the current contribution. KW - Ultraschall- und Wirbelstromprüfung KW - Radsätze von Personenverkehrszügen und Schienen KW - Non-destructive testing method KW - Ultrasonic and eddy current techniques KW - Railway track and wheel inspection PY - 2004 DO - https://doi.org/10.1016/j.ndteint.2003.06.001 SN - 0963-8695 VL - 37 IS - 2 SP - 89 EP - 94 PB - Butterworth-Heinemann CY - Oxford AN - OPUS4-2655 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erhard, Anton A1 - Pohl, Rainer A1 - Montag, Hans-Joachim A1 - Thomas, Hans-Martin A1 - Wüstenberg, Hermann T1 - NDT techniques for railroad wheel and gauge corner inspection T2 - Railway engineering - 2002, 5th International Conference and Exhibition T2 - Railway engineering - 2002, 5th International Conference and Exhibition CY - London, England DA - 2002-07-03 PY - 2002 AN - OPUS4-18892 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erhard, Anton A1 - Schenk, Gottfried A1 - Möhrle, Walter A1 - Montag, Hans-Joachim T1 - Schweißnahtprüfung mit Real-Time-Scanner-Prüfköpfen T2 - DGZfP-Dreiländer-Jahrestagung "ZfP als Dienstleistung in einer veränderten Industriestruktur" T2 - DGZfP-Dreiländer-Jahrestagung "ZfP als Dienstleistung in einer veränderten Industriestruktur" CY - Dresden, Germany DA - 1997-05-05 PY - 1997 AN - OPUS4-18871 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brekow, Gerhard A1 - Wüstenberg, Hermann A1 - Erhard, Anton A1 - Montag, Hans-Joachim A1 - Szafarska, E. A1 - Hein, E. T1 - Signalverarbeitung und Ergebnisdarstellung mit Ultraschall-Gruppenstrahlerprüfköpfen JF - Materialprüfung = Materials testing PY - 1989 SN - 0025-5300 VL - 31 IS - 10 SP - 311 EP - 314 PB - Carl Hanser Verlag CY - München AN - OPUS4-18766 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erhard, Anton A1 - Bertus, Norbert A1 - Montag, Hans-Joachim A1 - Schenk, Gottfried A1 - Hintze, H. T1 - Ultrasonic Phased Array System for Railroad Axle Examination T2 - Proceedings of the 8th ECNDT N2 - Introduction Due to the long history of railroad companies around the world, varying means of examination according to the specifications for the different railroad components have been carried out based on the general industrial progress of the country [1-3]. For more than 50 years the application of customized ultrasonic techniques for the examination of railroad components has increased, in comparison to conventional ultrasonic techniques used until to the end of 20th century. In this traditional atmosphere some accidents have disturbed the silent harmony of companies involved in the production of critical parts. More than ever high speed modern trains require modern and advanced examination techniques [4-8]. For practical application new ultrasonic techniques have been developed and optimized in co-operation with the German Railroad Company. In the present contribution the inspection of railroad axles will be described. The ultrasonic technique used for the examination is the phased array technique. The optimization of the phased array probes for the different geometries of the axles given was completed using a computer model for directivity calculations. In relation to the limited accessibility between wheel and brake angles of incidence for shear waves in the range between 28° and 72° are necessary. During the examination of the axles a a considerable amount of ultrasonic data must be stored (storage of the digitized A-scans). However, due to economic aspects the evaluation of this data should be carried out in a very short time. The whole examination of one axle should not exceed 5 minutes. Therefore we have developed a special evaluation program adapted to the particular problematic of the axle inspection. The build up of the whole inspection system was done with partners from the industry like Krautkramer and a division of the Research Department of the Deutsche Bahn AG. In this consortium the Research Department of the Deutsche Bahn AG was responsible for the specification of the inspection problem, Krautkramer for the organization of the whole technical follow up and BAM for the development and optimization of the ultrasonic inspection technique as well as for the evaluation software. Some examples concerning the optimization process will be described in the present contribution. T2 - 8th ECNDT CY - Barcelona, Spain DA - 2002-06-17 PY - 2002 UR - http://www.ndt.net/article/ecndt02/75/75.htm PB - European Federation for Non-Destructive Testing CY - Barcelona AN - OPUS4-1414 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Montag, Hans-Joachim A1 - Erhard, Anton A1 - Boehm, Rainer T1 - Visualisation and Evaluation of Phased Array UT Data T2 - 9th European Conference on NDT T2 - 9th European Conference on NDT CY - Berlin, Germany DA - 2006-09-25 KW - Tomographic representation KW - Sizing using SAFT KW - UC-image for wheel set shaft inspection KW - Echo tomogram of phased array probe measurements in V-arrangement PY - 2006 SN - 3-931381-86-2 SP - 1(?) EP - 8(?) PB - European Federation for Non-Destructive Testing CY - Berlin AN - OPUS4-14061 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -