EN 13979-1:2020

Railway applications - Wheelsets and bogies - Monobloc Wheels - Technical approval procedure - Part 1: Forged and rolled wheels

The aim of this document is to define a design assessment procedure of a forged and rolled monobloc wheel (RST). This assessment is carried out before the wheel is commissioned. This document describes, in particular, the assessment to be performed in order to use wheels on a European network which, in addition, have quality requirements in conformity with those defined in EN 13262.
This assessment requires that the conditions of use for the wheel are defined and this standard provides a method for defining those conditions.
The assessment of the design covers four aspects:
- a geometrical aspect: to allow interchangeability of different solutions for the same application;
- a thermomechanical aspect: to manage wheel deformations and to ensure that braking will not cause wheels to fracture;
- a mechanical aspect: to ensure that no fatigue cracks occur in the wheel web and that no permanent deformation occurs under exceptional loading;
- an acoustic aspect: to ensure that the solution chosen is as good as the reference wheel.
This document does not cover assessment of the hub or of the rim.
This document has been drawn up for wheels of non-powered tread-braked wheelsets and applies in full to this type of wheel. For wheels on which disc brakes are mounted or toothed transmission wheels or even wheels with noise reduction devices, the requirements may be amended or supplemented.
For urban railway vehicles, other standards or documents may be used.

Bahnanwendungen - Radsätze und Drehgestelle - Vollräder - Technische Zulassungsverfahren - Teil 1: Geschmiedete und gewalzte Räder

Gegenstand des vorliegenden Dokumentes ist die Bestimmung eines Verfahrens zur Konstruktionsbewertung eines aus Eisenbahnmaterial gewalzten und geschmiedeten Vollrades. Diese Bewertung wird vor der Inbetriebnahme vorgenommen. Das vorliegende Dokument beschreibt insbesondere die Bewertung, die auszuführen ist, um Räder, deren Qualitätsvorschriften angemessener als die sind, die nach EN 13262 festgelegt sind, auf einem europäischen Radbahnnetz zu nutzen.
Diese Bewertung erfordert die Festlegung der Rad-Nutzungsbedingungen und die vorliegende Norm präzisiert, wie diese Bedingungen festzulegen sind.
Die technische Zulassungsbewertung umfasst vier Gesichtspunkte:
-   geometrisch: um die Austauschbarkeit verschiedener Lösungen für den gleichen Anwendungsbereich zu ermöglichen;
-   thermomechanisch: um die Verformungen des Rades zu beherrschen und sicherzustellen, dass Bremsungen nicht zum Radbruch führen;
-   mechanisch: um sicherzustellen, dass kein Dauerschwingriss im Radsteg auftritt;
-   akustisch: um sicherzustellen, dass die Lösung so gut wie ein Referenzrad ist.
Dieses Dokument behandelt weder die Bewertung der Nabe, noch die Bewertung des Kranzes.
Dieses Dokument wurde für Räder von Laufradsätzen, die an der Lauffläche gebremst werden, erstellt. Für Räder, an denen Bremsscheiben oder Antriebszahnräder montiert sind, oder für Räder mit Lärmschutzvorrichtungen können die Anforderungen geändert bzw. vervollständigt werden.
Für Schienenverkehrsfahrzeuge des Nahverkehrs können andere Normen oder Dokumente angewendet werden.

Applications ferroviaires - Essieux montés et bogies - Roues monobloc - Procédure d'homologation technique - Partie 1 : Roues forgées et laminées

Le présent document a pour objet de définir une procédure d’évaluation de la conception d’une roue monobloc laminée forgée de matériel ferroviaire (RST). Cette évaluation est effectuée avant sa mise en service. Le présent document décrit en particulier l’évaluation à effectuer afin de pouvoir utiliser sur un réseau européen des roues dont les prescriptions de qualité sont de plus conformes à celles définies par l’EN 13262.
Cette évaluation nécessite de définir les conditions d’utilisation de la roue et la présente norme précise comment définir ces conditions.
L’évaluation de la conception comporte quatre aspects :
-   un aspect géométrique : permettre l’interchangeabilité de différentes solutions pour une même application ;
-   un aspect thermomécanique : maîtriser les déformations et garantir la non-rupture sous l’effet des freinages ;
-   un aspect mécanique : garantir la non-fissuration par fatigue des toiles de roue et l’absence de déformations permanentes sous chargement exceptionnel ;
-   un aspect acoustique : assurer que la solution choisie est aussi bonne que la roue prise comme référence.
Le présent document ne traite pas de l’évaluation du moyeu ni de la jante.
Le présent document a été établie pour les roues d’essieux montés porteurs freinées sur la table de roulement, et s’applique en totalité pour ce type de roue. Pour les roues sur lesquelles sont montés des disques de freins ou des roues dentées de transmission, ou bien les roues comportant des dispositifs de réduction du bruit, les exigences sont susceptibles d'être modifiées ou complétées.
Pour les véhicules ferroviaires urbains, d’autres normes ou documents sont susceptibles d'être utilisés.

Železniške naprave - Kolesne dvojice in podstavni vozički - Monoblok kolesa - Postopek za tehnično odobritev - 1. del: Kovana in valjana kolesa

General Information

• Status: Withdrawn
• Publication Date: 21-Jul-2020
• Withdrawal Date: 19-Dec-2023
• ICS: 45.040 - Materials and components for railway engineering
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: CEN/TC 256 - Railway applications
• Drafting Committee: CEN/TC 256/SC 2/WG 11 - Wheels - Wheelsets
• Directive: 2008/57/EC - Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)
• Directive: 2016/797/EU - Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May 2016 on the interoperability of the rail system within the European Union (Text with EEA relevance)
• Mandate: M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
• Ref Project: SIST EN 13979-1:2020 - Railway applications - Wheelsets and bogies - Monobloc Wheels - Technical approval procedure - Part 1: Forged and rolled wheels

Relations

• Replaces: EN 13979-1:2003+A2:2011 - Railway applications - Wheelsets and bogies - Monobloc wheels - Technical approval procedure - Part 1: Forged and rolled wheels
• Effective Date: 08-Jun-2022
• Replaced By: EN 13979-1:2023 - Railway applications - Wheelsets and bogies - Monobloc Wheels - Technical approval procedure - Part 1: Forged and rolled wheels
• Effective Date: 23-Sep-2020

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2020
Nadomešča:
SIST EN 13979-1:2004+A2:2011
Železniške naprave - Kolesne dvojice in podstavni vozički - Monoblok kolesa -
Postopek za tehnično odobritev - 1. del: Kovana in valjana kolesa
Railway applications - Wheelsets and bogies - Monobloc Wheels - Technical approval
procedure - Part 1: Forged and rolled wheels
Bahnanwendungen - Radsätze und Drehgestelle - Vollräder - Technische
Zulassungsverfahren - Teil 1: Geschmiedete und gewalzte Räder
Applications ferroviaires - Essieux montés et bogies - Roues monobloc - Procédure
d'homologation technique - Partie 1 : Roues forgées et laminées
Ta slovenski standard je istoveten z: EN 13979-1:2020
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13979-1
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2020
EUROPÄISCHE NORM
ICS 45.040 Supersedes EN 13979-1:2003+A2:2011
English Version
Railway applications - Wheelsets and bogies - Monobloc
Wheels - Technical approval procedure - Part 1: Forged
and rolled wheels
Applications ferroviaires - Essieux montés et bogies - Bahnanwendungen - Radsätze und Drehgestelle -
Roues monobloc - Procédure d'homologation Vollräder - Technische Zulassungsverfahren - Teil 1:
technique - Partie 1 : Roues forgées et laminées Geschmiedete und gewalzte Räder
This European Standard was approved by CEN on 8 April 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13979-1:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Parameters for the definition of the application covered . 8
4.1 General . 8
4.2 Geometric parameters for interchangeability . 8
4.2.1 General . 8
4.2.2 Functional requirements . 8
4.2.3 Assembly requirements . 9
4.2.4 Maintenance requirements . 9
4.3 Parameters for thermomechanical assessment of tread-braked wheels . 9
4.3.1 Drag braking or consecutive stop braking . 9
4.3.2 Accidental drag braking incident . 10
4.4 Mechanical assessment parameters . 10
4.5 Acoustic assessment parameters . 11
5 Description of the wheel, the design of which shall be assessed . 11
6 Assessment of geometric interchangeability . 11
7 Assessment of thermomechanical behaviour . 11
7.1 General procedure . 11
7.2 First stage – Braking bench test . 12
7.2.1 Test procedure . 12
7.2.2 Decision criteria . 12
7.3 Second stage – Wheel fracture bench test . 13
7.3.1 General . 13
7.3.2 Test procedure . 13
7.3.3 Decision criterion . 13
7.4 Third stage – Field braking test . 13
7.4.1 General . 13
7.4.2 Test procedure . 13
7.4.3 Decision criteria . 13
8 Assessment of mechanical behaviour . 14
8.1 General procedure . 14
8.2 First stage – Calculation . 14
8.2.1 Applied forces . 14
8.2.2 Calculation procedure . 16
8.2.3 Decision criteria . 16
8.3 Second stage – Bench test . 17
8.3.1 General . 17
8.3.2 Definition of bench loading and the test procedure . 17
8.3.3 Decision criteria . 17
9 Assessment of acoustic behaviour . 17
10 Technical approval documents . 17
Annexe A (informative) Drag braking values . 18
A.1 Freight wagons . 18
A.2 Other types of rolling stock and specific freight wagons . 18
Annexe B (normative) Assessment of thermomechanical behaviour . 19
B.1 Assessment flow chart . 19
B.2 Braking bench test procedure . 20
B.2.1 Test principle . 20
B.2.2 Definition of drag braking . 20
B.2.3 Method for measuring decision criteria . 20
B.2.4 Tests and measurements . 21
B.2.5 Anomalies . 22
B.3 Wheel fracture bench testing procedure . 22
B.3.1 Test principle . 22
B.3.2 Creation of residual stresses in the rim of the wheel . 22
B.3.3 Pre-cracked rim . 22
B.3.4 Definition of drag braking test . 24
B.3.5 Parameters for the wheel fracture bench test . 24
B.3.6 Tests and measurements . 25
B.3.7 Anomalies . 26
B.4 Field braking test procedure . 26
B.4.1 Test principle . 26
B.4.2 Definition of braking . 26
B.4.3 Method for measuring decision criteria . 27
B.4.4 Route type for testing . 27
B.4.5 Tests and measurements . 28
B.4.6 Anomalies . 29
Annexe C (normative) Wheel profile diameter definition . 30
C.1 General . 30
C.2 Diameter after last reprofiling . 30
C.3 Worn diameter . 31
Annexe D (normative) Assessment of mechanical behaviour .
...