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CEN/TS 13103-3:2026

Railway applications - Wheelsets and bogies - Part 3: Design method for axles with external journals for urban rail

Edition date: 2026-11-04
In Force
Available languages: English
Summary: This document describes the state of knowledge resulting from Urban Rail experiences regarding the design of the axle, and further steps to be investigated. CEN-CENELEC Guide 26 from 1st of June 2013 or EN 17343:2023 defines Urban Rail Systems. This document: — is applicable for the assessment of new axle designs for urban rail vehicles; — defines EN 13103-1 as basic calculation method2; — defines the calculation procedure of an operational index depending on track layout, payload, mileage, position of the wheelset axle in vehicle. This procedure is based on the examination of Europe-wide service experiences and calculations made on urban rail wheelset axles running in Germany3; — defines the conditions, reflected in this operational index, under which additional assessment steps may be needed; — defines these additional assessment steps, including measurements of bending and torsion moments to derive load collectives representative of normal in-service operating conditions and the determination of equivalent stresses. The design methodologies described in this document have been determined for axles of urban rail rolling stocks running under normal European conditions. If there is any doubt as to whether the railway operating conditions are normal, these methodologies should be adapted. This document applies to: — axles defined in EN 13261:2024; — axles with outboard bearings ; — powered and non-powered axles; — solid and hollow axles; — all track gauges4. This document does not apply to tilting vehicles. The calculation of wheelset axles for special applications (e.g. tamping/lining/levelling machines) may be made according to this document only for the load cases of free-running and running in train formation. This document does not apply to workload cases. They are calculated separately. 2 When no sufficient technical or operational data is available, EN 13103-1 can be used. 3 This Technical Specification reflects the state of knowledge resulting from Urban Rail experiences regarding the design of the axle, built-on by subcommittee DIN specially based for this Technical Specification 4 If the gauge is not standard, certain formulae need to be adapted, e.g. according to EN 13103-1:2017+A1:2022

Le présent document décrit l'état des connaissances résultant des expériences de chemin de fer urbain concernant la conception de l'essieu, et les étapes ultérieures à étudier. Le CEN-CENELEC Guide 26 du 1er juin 2013 définit les systèmes de rail urbain. Le présent document : — est applicable pour l'évaluation des nouvelles conceptions d'essieux pour les véhicules ferroviaires urbains ; — définit l’EN 13103 1 en tant que méthode de calcul de base ; — définit la procédure de calcul d'un indice opérationnel en fonction de la géométrie de la voie, de la charge utile, du kilométrage et de la position de l'essieu-axe dans le véhicule. Cette procédure s’appuie sur l’étude des expériences de service à l'échelle européenne et des calculs effectués sur le fonctionnement des essieux-axes de rail urbain en Allemagne ; — définit les conditions, reflétées dans cet indice opérationnel, selon lesquelles des étapes d'évaluation supplémentaires peuvent être nécessaires ; — définit ces étapes d'évaluation supplémentaires, y compris les mesures de moments de flexion et de torsion pour dériver des collectifs de charge représentatifs des conditions d’exploitation normales en service et la détermination des contraintes équivalentes. Les méthodologies de conception décrites dans le présent document ont été déterminées pour les essieux du matériel roulant de rail urbain fonctionnant dans des conditions européennes normales. En cas de doute sur le caractère « normal » des conditions d'exploitation ferroviaire, ces méthodologies seront adaptées. Le présent document s'applique : — aux essieux définis dans l’EN 13261:2024 ; — aux essieux à roulements extérieurs ; — aux essieux motorisés et non motorisés ; — aux essieux pleins ou creux ; — à tous les écartements de voie . Le présent document ne s'applique pas aux véhicules pendulaires. Le calcul des essieux-axes pour des applications spéciales (par exemple, les véhicules de travaux de bourrage/dressage en plan/nivellement) ne peut être effectué selon le présent document que pour les cas de charge en circulation libre et au sein d'une composition de train. Le présent document ne s'applique pas aux cas de charge utile. Ceux-ci sont calculés séparément.
ICS: 45.040-Materials and components for railway engineering
CTN: CEN/TC 256 - 6237

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