UIC 644

Railway Coach Bogie Behavior Assessment

This standard specifies the behavior and performance requirements for Y25 bogie type coaching stock bogies, focusing on derailment resistance, curving performance, and stability characteristics. It provides test methods and acceptance criteria for evaluating bogie performance through simulation, calculation, and track testing to ensure safe operation across varying track geometries and speeds. Compliance verification is mandatory for coach manufacturers, bogie suppliers, and infrastructure operators to maintain interoperability and prevent accidents. Accredited testing ensures comprehensive evaluation against standardized criteria, reducing operational risks and supporting evidence-based vehicle certification.

What it measures

  • Derailment coefficient and safety margin against derailment
  • Lateral and vertical wheel loads on curves
  • Curve-climbing behavior and stability
  • Dynamic response to track irregularities and switches
  • Forces on bogie frame and guidance components
🇩🇪 DIN EN 14363 🇬🇧 BS EN 14363 🇫🇷 NF EN 14363 🇮🇹 UNI EN 14363 🇪🇸 UNE EN 14363 🇳🇱 NEN EN 14363
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Gas- und Wärme-Institut Essen e. V.

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Georg-August Universität Göttingen, Stiftung öffentlichen Rechts Universitätsmedizin Göttingen Zentralabteilung Transfusionsmedizin HLA-Labor

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Gerinnungszentrum Rhein-Ruhr

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Gesellschaft für Materialforschung und Prüfungsanstalt für das Bauwesen Leipzig mbH - MFPA Leipzig

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Gigahertz Optik

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HAZET-WERK Hermann Zerver

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HBT

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HELIOS Horst Schmidt Kliniken Wiesbaden GmbH Institut für Labordiagnostik und Hygiene

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HENSOLDT Sensors

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HESCURO KLINIK Bad Brückenau GmbH Laborgemeinschaft Bad Brückenau

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HFB Engineering

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HIGHVOLT Prüftechnik Dresden GmbH Kalibrierlaboratorium

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Gleichspannung a) / Messgeräte > 600 kV Messsysteme, Teiler > 5 kV + 3 more
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HIMA Paul Hildebrandt GmbH Abteilung EDQ, Team HWS

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HLK Stuttgart

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HYDAC Systems & Services

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HaBu Hauck Prüftechnik

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Harzklinikum Dorothea Christiane Erxleben GmbH Zentrum für Laboratoriumsdiagnostik

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automatische Zelldifferenzierung Erythrozyten Leukozyten Retikulozyten Thrombozyten + 3 more
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Industries

Coach and passenger vehicle manufacturers Bogie and suspension system suppliers Railway operators and depot maintenance Track infrastructure and maintenance organizations Vehicle type approval and certification bodies

Related Standards

  • UIC 518 Railway applications — Tests for the acceptance of running characteristics of railway vehicles
  • EN 14363 Railway applications — Running gear — Testing and validation of running behaviour and safety
  • UIC 505-1 Railway vehicles — gauge limits — Part 1: Rolling stock

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