Railway applications - Brake discs for railway rolling stock - Part 3: Brake discs, performance of the disc and the friction couple, classification

This European Standard applies to brake discs and disc and pad interaction of railway rolling stock.
For a basic choice of disc and pad interaction couple, the following requirements and classification may be deployed.
This European Standard applies to a basic test of disc performance classes. The disc and pad interaction couple to be used as a reference is defined in this standard. The discs are used on vehicles operating on the main national networks, urban networks, underground railways, trams, private networks (regional railways, company railways, etc.). The classification will assist in the rough selection of quantity and performance for new coach, wagon and train configurations. In detail it will not be possible to derive wear and lifetime predictions more exact than good estimations. For specific service behaviour values it will in any case be necessary to determine the wear of the disc and pad couple by dynamometer tests.

Bahnanwendungen - Bremsscheiben für Schienenfahrzeuge - Teil 3: Bremsscheiben, Leistung Bremsscheibe und der Reibpaarung, Klassifikation

Diese Europäische Norm gilt für Bremsscheiben, die zum Einbau an Schienenfahrzeuge konstruiert sind.
Diese Europäische Norm umfasst eine Typprüfung für das Leistungsvermögen der Bremsscheiben. Die Bremsscheibe wird im Hinblick auf die Energieumwandlung und Energiedissipation, Belüftungseigenschaften sowie die mechanische Integrität geprüft.
Die Klassifizierung qualifiziert eine Bremsscheibe in Verbindung mit den festgelegten Bremsbelägen durch Versuche an einem Reibungsprüfstand, bei denen der Betriebseinsatz von bis zu einem Jahr entsprechend der festgelegten Anwendungsklasse simuliert wird. Die Klassifizierung legt keine Anwendung und Bremsleistung bei bestimmten Zügen fest.
ANMERKUNG   Für diesen Zweck können zusätzliche Prüfungen erforderlich sein.
Beim Einsatz von Bremsscheiben an Schienenfahrzeugen ist es nicht zwingend notwendig, klassifizierte Brems¬scheiben zu verwenden.
Klassifizierte Bremsscheiben können für den Einsatz an Schienenfahrzeugen mit zusätzlichen Prüfungen für Hochleistungsanwendungen validiert werden.
Diese Norm beschreibt das Verfahren der Typprüfung für die Klassifizierung von in EN 14535-1 und EN 14535-2 spezifizierten Bremsscheiben.

Applications ferroviaires - Disques de frein pour matériel roulant ferroviaire - Partie 3: Disques de frein, performances du disque et du couple de friction, classification

La présente Norme européenne s’applique aux disques de frein conçus pour équiper les véhicules ferroviaires utilisés par les réseaux principaux nationaux, les réseaux urbains, métropolitains, les tramways et les réseaux privés (chemins de fer régionaux, compagnies privées, etc.).
La présente Norme européenne comprend un essai de base des performances du disque. Le disque est soumis à essai pour les caractéristiques de dissipation d'énergie, de conversion de puissance et de ventilation ainsi que l'intégrité mécanique. Le couple d'interaction disque et garniture, qui sert de référence, est défini. La classification indique qu'un disque de frein équipé des garnitures de frein définies à l'aide d'essais au dynamomètre remplit les conditions de la validation de type dans le cadre d'une expérience en service pendant jusqu'à un an sans essais supplémentaires dans la classe d'application définie. Elle ne fournit pas de règles pour l'application et les performances de frein dans des trains spécifiques. Des essais supplémentaires peuvent être nécessaires à cet effet.
Les classes peuvent fournir une recommandation au concepteur du véhicule quant au choix préliminaire de l'équipement de freinage.
Les essais définis dans la présente norme sont des essais de type conformément à l'EN 14535-1 et à l'EN 14535-2, à l'exception de l'essai de performance de friction.

Železniške naprave - Kolutne zavore za železniška vozila - 3. del: Kolutne zavore, zmogljivost zavornega koluta in trenje kolutnega para, klasifikacija

Ta evropski standard se uporablja za kolutne zavore ter interakcijo med kolutom in oblogo za železniška vozila.
Za osnovno izbiro kolutnega para se lahko uvedejo naslednje zahteve in klasifikacija.
Ta evropski standard se uporablja za osnovni preskus razredov zmogljivosti kolutov. V tem standardu je določen kolutni par, ki se uporabi kot referenčni par. Koluti se uporabljajo v vozilih, ki obratujejo v glavnih državnih, urbanih, podzemnih, tramvajnih in zasebnih omrežjih (regionalne železniške proge, železniške proge podjetij). Klasifikacija omogoča grobo izbiro količine in zmogljivosti za nove konfiguracije potniških in tovornih vagonov ter vlakov. Obrabe in življenjske dobe ni mogoče podrobneje napovedati, ampak samo oceniti. Za določene vrednosti vedenja med obratovanjem bo v vsakem primeru treba določiti obrabo kolutnega para na podlagi preskusov z dinamometrom.

General Information

Status
Published
Public Enquiry End Date
29-Jun-2015
Publication Date
20-Jan-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
14-Jan-2016
Due Date
20-Mar-2016
Completion Date
21-Jan-2016

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Kolutne zavore za železniška vozila - 3. del: Kolutne zavore, zmogljivost zavornega koluta in trenje kolutnega para, klasifikacijaBahnanwendungen - Bremsscheiben für Schienenfahrzeuge - Teil 3: Bremsscheiben, Leistung Bremsscheibe und der Reibpaarung, KlassifikationApplications ferroviaires - Disques de frein pour matériel roulant ferroviaire - Partie 3: Disques de frein, performances du disque et du couple de friction, classificationRailway applications - Brake discs for railway rolling stock - Part 3: Brake discs, performance of the disc and the friction couple, classification45.040Materiali in deli za železniško tehnikoMaterials and components for railway engineeringICS:Ta slovenski standard je istoveten z:EN 14535-3:2015SIST EN 14535-3:2016en,fr,de01-marec-2016SIST EN 14535-3:2016SLOVENSKI
STANDARD



SIST EN 14535-3:2016



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14535-3
December
t r s w ICS
v wä r x rä r s English Version
Railway applications æ Brake discs for railway rolling stock æ Part
uã Brake discsá performance of the disc and the friction coupleá classification Applications ferroviaires æ Disques de frein pour matériel roulant ferroviaire æ Partie
uã Disques de freiná performances du disque et du couple de frictioná classification
Bahnanwendungen æ Bremsscheiben für Schienenfahrzeuge æ Teil
uã Bremsscheibená Leistung Bremsscheibe und der Reibpaarungá Klassifikation This European Standard was approved by CEN on
s r July
t r s wä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s w CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s v w u wæ uã t r s w ESIST EN 14535-3:2016



EN 14535-3:2015 (E) 2 Contents Page
European foreword . 4 Introduction . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Symbols and units . 7 5 Classification . 8 6 Information to be supplied . 8 7 Tested properties for brake disc classification . 9 7.1 General requirements . 9 7.2 Test specimens . 9 7.3 Preliminary and final verification sequences . 9 7.4 Pass and fail criteria . 9 8 Preconditions . 10 8.1 Dynamometers . 10 8.2 Wheel diameter . 10 8.3 Preliminary and final verification sequences . 10 9 Performance and Endurance Test . 11 9.1 Scope . 11 9.2 Classification test parameters . 11 9.3 Test procedure . 12 9.4 Pass and fail criteria . 15 10 Heat Dissipation Test . 15 10.1 Scope . 15 10.2 Test parameters. 15 10.3 Test procedure . 16 10.4 Pass and fail criteria . 17 11 Centrifugal test . 18 11.1 Scope . 18 11.2 Test parameters. 18 11.3 Test procedure . 19 11.4 Pass and fail criteria . 19 12 Ventilation Test. 19 12.1 Scope . 19 12.2 Test parameters. 19 12.3 Test procedure . 20 12.4 Pass and fail criteria . 20 13 Noise generation. 20 Annex A (informative)
Brake Disc Classification Certificate according to EN 14535-3 . 21 Annex B (informative)
Noise generation test . 22 SIST EN 14535-3:2016



EN 14535-3:2015 (E) 3 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC . 23 Bibliography . 25
SIST EN 14535-3:2016



EN 14535-3:2015 (E) 4 European foreword This document (EN 14535-3:2015) has been prepared by Technical Committee CEN/TC 256 “Railway Applications”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2016 and conflicting national standards shall be withdrawn at the latest by June 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. EN 14535, Railway applications — Brake discs for railway rolling stock, is currently composed of the following parts: — Part 1: Brake discs pressed or shrunk onto the axle or drive shaft, dimensions and quality requirements; — Part 2: Brake discs mounted onto the wheel, dimensions and quality requirements; — Part 3: Brake discs, performance of the disc and the friction couple, classification. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 14535-3:2016



EN 14535-3:2015 (E) 5 Introduction This European Standard gives the requirements and classification to be met for the design, dimensions, performance, and testing of the brake disc and “pad and brake disc friction couple“. These requirements need to be proven in sufficient detail by dynamometer tests. Quality of design, workmanship and construction need to ensure accordance with good engineering practice and manufacture. The classification according to this standard is the subject of a brake disc classification certificate (Annex A). SIST EN 14535-3:2016



EN 14535-3:2015 (E) 6 1 Scope This European Standard applies to brake discs designed to be fitted to railway vehicles. This European Standard comprises a type test of brake disc performance. The brake disc is tested for energy conversion and dissipation, ventilation characteristics as well as mechanical integrity.
The classification qualifies a brake disc in conjunction with the defined brake pad by dynamometer tests which simulates up to one year in service when operating in the defined application class. It does not define the application and the brake performance in specific trains.
NOTE For this purpose, additional tests may be necessary. For the application of brake discs on railway vehicles it is not mandatory to use classified brake discs. Classified brake discs can be validated for the use on railway vehicles for higher performance applications with additional tests. This standard describes the type test procedure for brake disc classification as specified in EN 14535-1 and EN 14535-2. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 14535-1, Railway applications - Brake discs for railway rolling stock - Part 1: Brake discs pressed or shrunk onto the axle or drive shaft, dimensions and quality requirements EN 14535-2, Railway applications - Brake discs for railway rolling stock - Part 2: Brake discs mounted onto the wheel, dimensions and quality requirements EN 14478, Railway applications - Braking - Generic vocabulary EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14478 and the following apply. 3.1 axle mounted brake disc component attached to the axle shaft, drive shaft or any shaft directly coupled to the wheel, and rotating with the wheel
Note 1 to entry: See EN 14535-1. 3.2 wheel mounted brake disc component attached to the wheel rim, wheel web or wheel hub, and rotating with the wheel
Note 1 to entry: See EN 14535-2. SIST EN 14535-3:2016



EN 14535-3:2015 (E) 7 3.3 friction face radially and circumferentially extending planar surface of the brake disc available for frictional engagement of the brake pad(s) 3.4 brake ring portion of the brake disc having the friction face(s) 3.5 brake disc temperature arithmetic average of the temperature values measured by the six temperature sensors installed on the brake disc 3.6 brake disc classification certificate document which declares the class fulfilled by the tested product by the classification table Note 1 to entry:
See Clause 5. Note 2 to entry:
It includes the references of the tested specimen and of all the documents produced to obtain the classification. Note 3 to entry:
See Annex A. 3.7 technical datasheet of the product document in which are described the technical characteristics of the product and the maintenance criteria 4 Symbols and units For the purposes of this document, the following symbols and units apply. Table 1 — Symbols and units Symbol Description Unit PC Nominal power per brake disc in a dragging brake kW v Speed km/h U Imbalance g„m am Deceleration m/s2 m Braked mass per brake disc t vm Class speed km/h t Application duration min Pm Maximum power of the class kW Wb Maximum energy of the class MJ Pvmin Minimum ventilation power of the class kW Pvmax Maximum ventilation power of the class kW 0 Initial temperature °C SIST EN 14535-3:2016



EN 14535-3:2015 (E) 8 5 Classification The classification of the brake disc is described by use of a performance class, which is a set of the values of brake energy, brake power and brake torque, related to the major diameter, width and type of the brake disc, at which it is type tested to demonstrate its capability to withstand these conditions without exceeding the defined limits of structural degradation. The classification of the brake disc is summarized in as follows and recorded in the classification certificate (see Annex A): W3- C1- H3- V03/ V01
Ventilation class at speeds vm and vm /2 according to 12.2
Heat dissipation class according to 10.2
Performance and endurance
class according to 9.2
Wheel diameter class according to 8.2 NOTE The designation and marking are in accordance with EN 14535-1 and EN 14535-2. 6 Information to be supplied The following information shall be fully documented. For compliance with the standard both the common requirements specified throughout the standard and the following documented items shall be satisfied: — definition and identification of the brake pads (7.2); — drawing of the wheel (In case of wheel mounted brake disc); — wheel class (8.2) and wheel diameter if the wheel class is W0; — method for preliminary and final verifications (8.3); — performance and endurance target class (9.2); — heat dissipation target class (10.2); — ventilation target class (12.2); — method for the verification of pass and fail criteria (9.4, 10.4, 11.4, 12.4); — imbalance class according to EN 14535-1 and EN 14535-2 and value of imbalance if it isn’t defined; — maximum values for corrugation, swashing and buckling (9.4, 10.4). NOTE Usually these items of information are supplied by the manufacturer. SIST EN 14535-3:2016



EN 14535-3:2015 (E) 9 7 Tested properties for brake disc classification 7.1 General requirements Brake disc and pad materials used for the performance tests shall be in accordance with the specifications of this standard. The brake disc and pad interaction couple, which is used as a reference, shall be defined. Should the classification be required with more than one reference pad, then only the performance, endurance and heat dissipation tests, are required to be repeated with the further pad type. If brake disc dimensions are changed by no more than ± 1 % from existing models, this brake disc shall be included in the same performance class of the existing brake disc without re-testing. In case of wheel mounted brake discs, all the tests shall be performed with the brake disc assembled on a wheel. Details for the execution of the tests are described in the following clauses. The operators shall monitor the product installed during the trial test according to their specific evaluation criteria. 7.2 Test specimens Three specimens shall be provided for a classification. The specimens shall be produced under serial conditions and the raw materials shall come from the same casting or forging batch. The production data shall be confirmed by certificates. Dimensional and material controls: Specimen 1. The classification tests shall be carried out in the following order using the reference specimens: — performance and endurance test: Specimen 2; — centrifugal test: Specimen 2; — ventilation test: Specimen 3; — heat dissipation test: Specimen 3. The pad type shall be defined and used for all the classification test. The pads used for each test shall be identified. 7.3 Preliminary and final verification sequences Before starting the tests and after any test that may influence or change the physical integrity of the tested brake disc the verifications that are listed in Table 3 shall be executed. 7.4 Pass and fail criteria The pass and fail criteria for every test are mentioned after each test to which they apply. SIST EN 14535-3:2016



EN 14535-3:2015 (E) 10 8 Preconditions 8.1 Dynamometers The tests shall be carried out on calibrated dynamometers. All test devices shall be calibrated according to the relevant clauses of EN ISO/IEC 17025. The brake ring shall be equipped with six temperature sensors positioned 1 mm below the friction surface, 3 on each face. For each face one sensor is positioned on the middle radius of the friction face of brake ring and the other two are positioned on the middle radius ± 40 mm, circumferentially positioned at an angle of 120° to each other. This shall be applied except when the brake disc geometry does not allow it. In this case sliding thermocouples may be used. 8.2 Wheel diameter Depending on the application of the brake disc, different wheel diameters shall be used as a parameter for the te
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