08-30181784-DC.pdf

a Date: 24 July 2008 Origin: European Latest date for receipt of comments: 31 October 2008 Project no.: 2008/01446 Responsible committee: RAE/1/-/8 Vehicle/track interaction Interested committees: RAE/1 Title: Draft BS EN 15839 Railway Applications - Testing for the acceptance of running characteristics of railway vehicles - Freight wagons - Testing of running safety under longitudinal compressive forces Supersession information: If this document is published as a standard, the UK implementation of it will supersede NONE and partially supersede. NONE If you are aware of a current national standard which may be affected, please notify the secretary (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 October 2008. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. 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Direct tel: 020 8996 7445 Responsible Committee Secretary: Mr K Seyde (BSI) E-mail: keith.seydebsigroup.com Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 8.0 DPC: 08/30181784 DC Licensed CopyChinese University of Hong Kong, 21/10/2008 08:11, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on European discussions in which the UK has taken an active part. Your comments on this draft are welcome and will assist in the preparation of the consequent British Standard. If no comments are received to the contrary, then the UK will approve this draft and implement it as a British Standard. Comment is particularly welcome on national, legislative or similar deviations that may be necessary. Even if this draft standard is not approved by the UK, if it receives the necessary support in Europe, the UK will be obliged to publish the official English Language text unchanged as a British Standard and to withdraw any conflicting standard. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all comments receive efficient and appropriate attention by the responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatible with Version 6.0 or Version 97 of Microsoft® Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. 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Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed CopyChinese University of Hong Kong, 21/10/2008 08:11, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM DRAFT prEN 15839 July 2008 ICS English Version Railway applications - Testing for the acceptance of running characteristics of railway vehicles - Freight wagons - Testing of running safety under longitudinal compressive forces Applications ferroviaies - Essais en vue de l'homologation du comportement dynamique des véhicules ferroviaires - Wagons - Essais de sécurité de circulation en influence des forces compressives longitudinales Bahnanwendungen - Fahrtechnische Prüfung für die fahrtechnische Zulassung von Eisenbahnfahrzeugen - Güterwagen - Prüfung der Fahrsicherheit unter Längsdruckkräften This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 256. If this draft becomes a European Standard, 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. This draft European Standard was established by CEN 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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. Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation. Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and shall not be referred to as a European Standard. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2008 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. prEN 15839:2008: E Licensed CopyChinese University of Hong Kong, 21/10/2008 08:11, Uncontrolled Copy, (c) BSI prEN 15839:2008 (E) 2 Contents Page Foreword3 Introduction.4 1 Scope 5 2 Normative references6 3 Terms and definitions .6 4 Stationary tests7 4.1 Evaluation of the torsional stiffness of a car body c*t.7 4.1.1 General7 4.1.2 Force-deflection measurement directly at the car body7 4.1.3 Force-deflection measurement at the contact points between wheel and rail after blocking of the suspension(s) between wheelset (bogie frame) and car body 8 4.2 Condition for dispensation of tests or calculations regarding the safety against derailment in twisted tracks .8 4.3 Proof of the sustainable longitudinal compressive force by propelling tests8 4.3.1 General8 4.3.2 Conditions for dispensation of tests.9 4.3.3 Conditions of the execution and evaluation of propelling tests for the determination of the sustainable longitudinal compressive force of freight wagons with side buffers.14 Annex A (informative) Symbols .21 Annex B (normative) Design characteristics of standardized interface of permanent coupled units with diagonal buffers for dispensation of propelling tests .22 Bibliography24 Licensed CopyChinese University of Hong Kong, 21/10/2008 08:11, Uncontrolled Copy, (c) BSI prEN 15839:2008 (E) 3 Foreword This document (prEN 15839:2008) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. This document is currently submitted to the CEN Enquiry. NOTE This draft is planned to become an amendment of EN 14363 which will be integrated in the next revision. Licensed CopyChinese University of Hong Kong, 21/10/2008 08:11, Uncontrolled Copy, (c) BSI prEN 15839:2008 (E) 4 Introduction Due to the operating conditions of braking or propelling high longitudinal forces can occur between coupled freight wagons. These forces can be safety related especially in S-shaped curves with small radii. The establishment of this document was based on existing rules, practices and procedures in order to define acceptance criteria ensuring a safe operation under such operating conditions. The following principles are applied: 1) The railway system requires comprehensive technical rules in order to ensure an acceptable interaction of vehicle and track. 2) Due to the numerous national and international regulations new railway vehicles are tested and homologated before putting them into service. In addition, existing acceptance is checked when operating conditions are extended. 3) In view of the significance of international traffic, the standardisation of existing regulations is required. In some cases, additional rules are required as well. An update of existing regulations is also needed due to the considerable progress achieved in the field of railway-specific methods for measuring, evaluation and data processing. 4) It is of particular importance that the existing level of safety and reliability is not compromised even when changes in design and operating practices are demanded. This document is derived in essential parts from UIC 530-2 which is based on practical tests performed in ERRI-B12. Practical experiences have shown that due to the low probability of superimposition of the most unfavourable conditions a sufficient safety level is achieved by using limits for the minimum sustainable longitudinal force in a 150-m-S-shaped curve of 200 kN for two-axle wagons and 240 kN for wagons with two two-axle bogies. Under extreme conditions higher longitudinal forces may occur in freight trains without necessarily causing derailments: ORE-B12, RP.58 recommends that freight trains are operated in such a way that longitudinal forces of 300 kN are not exceeded. The limits of the assessment quantities are related to the running safety of the vehicle under longitudinal compressive forces. The torsional stiffness of the car body ct* is a significant parameter for the sustainable longitudinal compressive force as well as for the safety against derailment in twisted tracks as defined in EN 14363:2005, 4.1. For this reason a description of a measuring procedure for this parameter is included in this document. Furthermore for defined standard freight wagons the possibility of a dispensation from derailment tests according to EN 14363:2005, 4.1 is defined based on already published calculated results in the diagram collection of UIC 530-2. Based on investigations documented in ORE-B12, Rp. 40, 69 and 70 design-parameter fields for dispensation of propelling tests are tabled. To assess the possibility of dispensation from propelling tests with wagons with two 2-axle bogies equipped with side buffers and screw coupler use is made of the diagrams indicating the possibility of achieving coupling with automatic couplers. Variations from the conditions specified in this document are allowed as specified by article 7.1 of directive 91/440 EC. For national or multilateral operations the infrastructure managers concerned may authorize variations to the defined conditions. Licensed CopyChinese University of Hong Kong, 21/10/2008 08:11, Uncontrolled Copy, (c) BSI prEN 15839:2008 (E) 5 It is allowed to deviate from the rules laid down if evidence can be furnished that safety is at least the equivalent to that ensured by complying with these rules. 1 Scope This document covers the testing for acceptance of the running safety of freight wagons with side buffers and screw couplers at their ends under longitudinal compressive forces. This document applies to the following types of freight wagons: Wagons equipped with side buffers and screw couplers at their ends; Permanently coupled units with side buffers and screw couplers at their ends and between the vehicles; Permanently coupled units with side buffers and screw couplers at their ends and diagonal buffers with screw couplers between the vehicles; Articulated wagons with three 2-axle bogies equipped with side buffers and screw couplers at their ends; Low-floor wagons with eight or more axles (e.g. Rolling Road wagon). NOTE A description of such vehicles is given in UIC 571-4:2004, 3.4. The following vehicles are not currently in the scope of this document: Wagons with automatic couplers; NOTE These wagons are handled in UIC 530-2. Wagons with 3-axle bogies; NOTE Due to their high tare mass and their short length these wagons were not specially investigated according to this standard in the past, because it was anticipated, that these wagons can safely sustain higher longitudinal compressive forces than other wagons. Permanently coupled units with a bar coupler between the vehicles; NOTE A working group of UIC is developing the acceptance conditions for this type of wagon. It is planned to include the regulations into this European Standard. Articulated wagons with more than three two axled bogies. Acceptance criteria and test conditions as well as conditions for the dispensation of tests are defined in this document. This document applies principally to all wagons which operate without restriction on standard gauge tracks (1 435 mm). The working group is not aware of the influence on railway systems using different gauges. The described criteria are part of the type testing of wagons which are newly developed or have had relevant design modifications. The testing and acceptance refers to the complete vehicle including the running gear. Licensed CopyChinese University of Hong Kong, 21/10/2008 08:11, Uncontrolled Copy, (c) BSI prEN 15839:2008 (E) 6 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the re