CEN/TS 13979-2:2011

Railway applications - Wheelsets and bogies - Monobloc wheels - Technical approval procedure - Part 2: Cast wheels

This Technical Specification defines the requirements for a cast monobloc wheel of a freight railway vehicle non-powered axle for use on a European network.
   It only applies to wheels of new design or new European application.
   These requirements are intended to assess the validity of the design choice for the proposed use.
   The assessment of these requirements is the technical approval procedure.
   This Technical Specification does not address the quality requirements for cast wheels. These quality requirements are defined in Technical Specification CEN/TS 15718.

Bahnanwendungen - Radsätze und Drehgestelle - Vollräder - Technische Zulassungsverfahren - Teil 2: Gussräder

Diese Technische Spezifikation legt die Anforderungen an ein gegossenes Vollrad für einen nicht angetriebenen Radsatz eines Eisenbahngüterwagens für den Gebrauch in einem europäischen Netz fest.
Diese Technische Spezifikation gilt nur für neue Radkonstruktionen oder neue europäische Anwendungen.
Der Zweck der Anforderungen besteht darin, die Wahl der Konstruktion für den betrachteten Anwendungs-bereich nachzuweisen.
Die Bewertung hinsichtlich dieser Anforderungen ist das technische Zulassungsverfahren.
Diese Technische Spezifikation beschreibt nicht die Qualitätsanforderungen für Gussräder. Diese Qualitätsan-forderungen werden in CEN/TS 15718 definiert.

Applications ferroviaires - Essieux montés et bogies - Roues monobloc - Procédure d'homologation technique - Partie 2: Roues en acier moulé

La présente spécification technique définit les exigences relatives aux roues monobloc moulées des essieux-axes porteurs des véhicules ferroviaires de fret utilisés sur les réseaux européens.
Elle s'applique uniquement aux roues de conception nouvelle ou conçues pour une nouvelle application européenne.
Ces exigences sont destinées à évaluer la validité du choix de conception pour l’application proposée.
L'évaluation de ces exigences constitue la procédure d'homologation technique.
La présente spécification technique ne traite pas des exigences de qualité s'appliquant aux roues en acier moulé. Ces exigences de qualité sont définies dans la spécification technique CEN/TS 15718.

Železniške naprave - Kolesne dvojice in podstavni vozički - Monoblok kolesa - Postopek za tehnično odobritev - 2. del: Lita kolesa

Ta evropski standard opredeljuje zahteve za lita kolesa monoblok na negnani osi tovornega železniškega vozila za uporabo v evropskem omrežju.
Velja samo za kolesa po novih načrtih ali nove evropske aplikacije.
Te zahteve so namenjene ocenitvi veljavnosti izbire načrta za predlagano uporabo.
Ocenitev teh zahtev je tehnični postopek odobritve.
Ta evropski standard ne obravnava zahtev glede kakovosti litih koles. Te zahteve glede kakovosti so opredeljene v FprEN 15718.

General Information

• Status: Published
• Publication Date: 13-Sep-2011
• ICS: 45.040 - Materials and components for railway engineering
• Technical Committee: CEN/TC 256 - Railway applications
• Drafting Committee: CEN/TC 256/SC 2/WG 11 - Wheels - Wheelsets
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 05-Jun-2023
• 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)
• Mandate: M/334 - Mandate for programming and standardisation addressed to CEN, CENELEC and ETSI in the field of the Interoperability of the trans-european conventional rail system
• Ref Project: SIST CEN/TS 13979-2:2011 - Railway applications - Wheelsets and bogies - Monobloc wheels - Technical approval procedure - Part 2: Cast wheels

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2011
äHOH]QLãNHQDSUDYH.ROHVQHGYRMLFHLQSRGVWDYQLYR]LþNL0RQREORNNROHVD
3RVWRSHN]DWHKQLþQRRGREULWHYGHO/LWDNROHVD
Railway applications - Wheelsets and bogies - Monobloc wheels - Technical approval
procedure - Part 2: Cast wheels
Bahnanwendungen - Radsätze und Drehestelle - Vollräder - Technische
Zulassungsverfahren - Teil 2: Gussräder
Applications ferroviaires - Essieux montés et bogies - Roues monobloc - Procédure
d'homologation technique - Partie 2 : Roues en acier moulé
Ta slovenski standard je istoveten z: CEN/TS 13979-2:2011
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.

TECHNICAL SPECIFICATION
CEN/TS 13979-2
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
September 2011
ICS 45.040
English Version
Railway applications - Wheelsets and bogies - Monobloc wheels
- Technical approval procedure - Part 2: Cast wheels
Applications ferroviaires - Essieux montés et bogies - Bahnanwendungen - Radsätze und Drehgestelle - Vollräder
Roues monobloc - Procédure d'homologation technique - - Technische Zulassungsverfahren - Teil 2: Gussräder
Partie 2: Roues en acier moulé
This Technical Specification (CEN/TS) was approved by CEN on 3 January 2011 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 13979-2:2011: E
worldwide for CEN national Members.

Contents Page
Forew ord .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Parameters for the definition of the application covered .6
3.1 Parameters for geometric interchangeability .6
3.1.1 Functional requirements .6
3.1.2 Assembly requirements .7
3.1.3 Maintenance requirements .7
3.2 Parameters for thermomechanical assessment .7
3.3 Parameters for mechanical assessment .7
3.4 Parameters for acoustic assessment .8
4 Description of the wheel to be approved .8
5 Assessment of the geometric interchangeability .8
6 Assessment of the thermomechanical behaviour .8
6.1 General procedure .8
6.2 First stage – Braking bench test .9
6.2.1 Test procedure .9
6.2.2 Decision criteria .9
6.3 Second stage – Wheel fracture bench test .10
6.3.1 General .10
6.3.2 Test procedure .10
6.3.3 Decision criterion .10
6.4 Third stage – Field braking test .10
6.4.1 General .10
6.4.2 Test procedure .10
6.4.3 Decision criteria .10
7 Assessment of the mechanical behaviour .11
7.1 General procedure .11
7.2 First stage - Calculation .11
7.2.1 Applied forces .11
7.2.2 Calculation procedure .12
7.2.3 Preliminary assessment criterion .13
7.3 Second stage – Bench test .13
7.3.1 General .13
7.3.2 Definition of bench loading and of the test procedure .13
7.3.3 Decision criteria .13
8 Assessment of the acoustic behaviour .13
8.1 General procedure .13
8.2 Calculation procedure .14
8.3 Field measurements .14
8.4 Decision criteria .14
9 Technical approval documents .15
Annex A (normative) Assessment of the thermomechanical behaviour .16
A.1 Assessment flow chart .16
A.2 Braking bench test procedure .17
A.2.1 Principle of the test . 17
A.2.2 Definition of braking . 17
A.2.3 Method of measuring the decision criteria . 17
A.2.4 Tests and measurements . 18
A.2.5 Anomalies . 19
A.3 Wheel fracture bench test procedure . 19
A.3.1 Principle of the test . 19
A.3.2 Definition of drag braking . 19
A.3.3 Pre-cracking of the rim . 20
A.3.4 Tests and measurements . 20
A.3.5 Anomalies . 21
A.4 Field braking test procedure . 21
A.4.1 Principle of the test . 21
A.4.2 Definition of braking . 21
A.4.3 Method of measurement of the decision criteria . 21
A.4.4 Tests and measurements . 22
A.4.5 Anomalies . 23
Annex B (normative) Flow chart of the mechanical behaviour assessment . 24
Annex C (informative) Mechanical behaviour – Finite element code assessment. 25
Annex D (informative) Mechanical behaviour – Bench loading and test procedure. 26
D.1 Principle of bench loading and test procedure . 26
D.2 Definition of loading . 27
D.2.1 General . 27
D.2.2 Measurement of the stresses during field tests . 27
D.3 Fatigue bench test . 27
D.3.1 Method 1 – Random fatigue test . 27
D.3.2 Method 2 – Single-stage fatigue test . 29
Annex E (informative) Assessment of the acoustic behaviour . 31
E.1 Assessment flow chart . 31
E.2 Calculation procedure . 32
E.2.1 Preliminary comment . 32
E.2.2 Calculation of the wheel modal basis . 32
E.2.3 Selection of the reference track model . 32
E.2.4 Definition of the calculation parameters .
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