BS PD CLC TR 50126-3-2008 Railway applications —The specification and ndemonstration of Reliability Availability nMaintainability and Safety (RAMS) — nPart 3 Guide to th.pdf

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1、PUBLISHED DOCUMENT PD CLC/TR 50126-3:2008 Railway applications The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) Part 3: Guide to the application of EN 50126-1 for rolling stock RAM ICS 29.280; 45.020 PD CLC/TR 50126-3:2008 This Published Document wa

2、s published under the authority of the Standards Policy and Strategy Committee on 30 September 2008 BSI 2008 ISBN 978 0 580 61845 1 National foreword This Published Document is the UK implementation of CLC/TR 50126-3:2008. It supersedes PD CLC/TR 50126-3:2006 which is withdrawn. The UK participation

3、 in its preparation was entrusted by Technical Committee GEL/9, Railway electrotechnical applications, to Subcommittee GEL/9/2, Rolling stock. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the neces

4、sary provisions of a contract. Users are responsible for its correct application. Amendments/corrigenda issued since publication Date Comments TECHNICAL REPORT CLC/TR 50126-3 RAPPORT TECHNIQUE TECHNISCHER BERICHT July 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen

5、 de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. CLC/TR 50126-3:2008 E ICS 29.280; 45.

6、020 Supersedes CLC/TR 50126-3:2006English version Railway applications The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) Part 3: Guide to the application of EN 50126-1 for rolling stock RAM Applications ferroviaires Spcification et dmonstration de la

7、 Fiabilit, de la Disponibilit, de la Maintenabilit et de la Scurit (FDMS) Partie 3: Guide pour lapplication de la EN 50126-1 la fiabilit, la disponibilit, la maintenabilit et la scurit du matriel roulant Bahnanwendungen Spezifikation und Nachweis der Zuverlssigkeit, Verfgbarkeit, Instandhaltbarkeit,

8、 Sicherheit (RAMS) Teil 3: Leitfaden zur Anwendung der EN 50126-1 fr Bahnfahrzeuge RAM This Technical Report was approved by CENELEC on 2008-05-09. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Franc

9、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword This Technical Report was prepared by Working Group B11 of SC 9XB, Electrome

10、chanical material on board of rolling stock, of Technical Committee CENELEC TC 9X, Electrical and electronic applications for railways. The text of the draft was submitted to the vote and was approved by CENELEC as CLC/TR 50126-3 on 2008-05-09. This Technical Report supersedes CLC/TR 50126-3:2006. T

11、his Technical Report forms an informative part of EN 50126 and contains guidelines for the application of EN 50126-1 to Rolling Stock RAM. _ 2 CLC/TR 50126-3:2008 Contents Page Introduction 6 1 Scope . 7 2 Definitions 7 3 Approach adopted for the Guide 8 3.1 General 8 3.2 Entities Involved In the Li

12、fe Cycle Phases of Rolling Stock 8 4 Application of this Guide 8 4.1 Object of the application 8 4.2 Application of EN 50126-1 9 4.2.1 Assessment of the application of EN 50126-1 9 4.2.2 Mandatory requirements for the application of EN 50126-1 . 9 5 Specifying RAM requirements . 10 5.1 Introduction

13、. 10 5.2 Preliminary RAM analysis . 10 5.2.1 General . 10 5.2.2 Preliminary RAM Analysis activities 10 5.2.2.1 General 10 5.2.2.2 System Identification . 11 5.2.2.3 Breakdown structure and boundary limits 12 5.2.2.4 Failure Conditions . 14 5.3 RAM requirements 16 5.3.1 Introduction . 16 5.3.2 Reliab

14、ility Targets . 16 5.3.3 Maintainability Targets 18 5.3.3.1 Generic Qualitative Requirements for Maintainability 18 5.3.3.2 Preventive/Corrective Maintenance Requirements . 20 5.3.3.3 Logistic Support Requirements . 20 5.3.3.4 Maintenance Cost Requirements 21 5.3.4 Availability Targets 21 5.4 Proces

15、s for choosing RAM figures 24 5.5 RAM Programme 24 5.5.1 Introduction . 24 5.5.2 Configuration Management System . 25 5.5.3 RAM Programme Outline 25 5.5.4 Example of RAM Analyses Document Template and Data 26 5.5.4.1 Introduction 26 5.5.4.2 Common Data for the analyses 26 5.5.4.3 Reliability Predict

16、ion Analysis Template and Data Sheets . 27 5.5.4.4 Maintenance Attributes (Maintenance Levels, Skill Level and LRU definition) 29 5.5.4.5 Preventive Maintenance Analysis Template and Data Sheets 31 5.5.4.6 Corrective Maintenance Analysis Template and Data Sheets 35 5.5.4.7 Failure Mode Effects and C

17、riticality Analysis Template and Data Sheets 37 3 CLC/TR 50126-3:20086 RAM Assurance during Life Cycle . 40 6.1 RAM Programme and Phases of the Life Cycle . 40 6.1.1 Introduction . 40 6.1.2 Tender Phase . 41 6.1.3 Design Phase 42 6.1.4 Demonstration Phase . 44 6.1.4.1 Introduction 44 6.1.4.2 RAM Acc

18、eptance Criteria . 45 6.1.4.3 In service checking Period . 45 6.1.4.4 Data Report from field and its organisation 46 7 RAM Parameters to be incorporated into LCC Model . 47 7.1 Introduction . 47 7.2 Overview of LCC Modelling 47 7.3 RAM parameters for LCC 48 Annex A Examples of breakdown structure .

19、49 Bibliography . 62 Figures Figure 1 Example of Reliability Prediction Analysis Sheet . 28 Figure 2 Example of Preventive Maintenance Analysis Sheet 32 Figure 3 Example of Preventive Maintenance Sheet for a single frequency . 34 Figure 4 Example of Corrective Maintenance Analysis Sheet . 36 Figure

20、5 Example of items FMECA Sheet 38 Figure 6 Example of functions FMECA Sheet 39 Figure 7 RAM Programme and Life Cycle Phases 40 Figure 8 Possible relationships between Customer, Main Supplier, Sub-Supplier during some phases of Life Cycle for rolling stock . 41 Figure 9 Flow diagram representing acti

21、vities/documentations of Design Phase 42 Figure A.1 Example of physical structure using organisation chart for an Electrical Multiple Unit Coach . . 50 Figure A.2 Example of functional structure using organisation chart for an Electrical Multiple Unit Coach . . 51 Figure A.3 Example of structure usi

22、ng the tree breakdown chart for an EMU (Electrical Multiple Unit) Traction Vehicle . 58 Figure A.4 Example of structure using the tree breakdown chart for an EMU (Electrical Multiple Unit) Coach . . 61 4 CLC/TR 50126-3:2008 Tables Table 1 Possible sharing of responsibility 8 Table 2 Example of minim

23、um set of data of the header for a form representing a breakdown structure . 13 Table 3 Example of minimum set of data representing a breakdown structure . 14 Table 4 RAM Failure Categories 14 Table 5 Significant Failure Specification 15 Table 6 Major Failure Specification 16 Table 7 Minor Failure S

24、pecification 16 Table 8 Reliability Requirements for Failure Categories 17 Table 9 Qualitative Requirements for Maintainability . 18 Table 10 Preventive/Corrective Maintenance Requirements . 20 Table 11 Logistic Support Requirements . 20 Table 12 Maintenance Cost Requirements 21 Table 13 Availabilit

25、y Requirements 23 Table 14 Example of minimum set of data of the header for RAM analyses Template . 27 Table 15 Example of minimum set of data for Reliability Prediction sheets 27 Table 16 Example of minimum set of data for Preventive Maintenance sheets 31 Table 17 Example of minimum set of data for

26、 Corrective Maintenance sheets . 35 Table 18 Example of minimum set of data for items FMECA sheets . 37 Table 19 Description of the main tasks of Design Phase . 43 5 CLC/TR 50126-3:2008Introduction EN 50126-1 is likely to enhance the general understanding of the issues involved in achieving RAMS cha

27、racteristics within the railway field. It defines a comprehensive set of tasks for the different phases of a generic life cycle for a total rail system. Although some of the examples given in the annexes of EN 50126-1 are for rolling stock, the standard is essentially aimed as a top level railway sy

28、stem document. RAMS characteristics for rolling stock (i.e. its long term operating behaviour performance), as for any other system, forms an important part of its overall performance characteristics. But the consideration of RAMS, in contractual terms, between a customer / operator and a Main Suppl

29、ier for the procurement of rolling stock has been problematic. Also, in rolling stock contracts, there is now a greater emphasis on the impact on end customers of service failures and on the economic and risk considerations of RAMS (i.e. the business perspective). Consequently, Life Cycle Cost is be

30、ing used as a measure of satisfying customer needs and providing a wider perspective of RAMS importance in terms of the business economics. Life Cycle Cost approach represents a holistic, total cost of ownership philosophy for addressing the economic considerations. The contribution of RAMS to the L

31、CC (Life Cycle Cost) of rolling stock could be used to allow the economic considerations to be addressed. This application guide focuses mainly on the tasks and issues from procurement, engineering and maintenance, from the tender to the operation/maintenance phase, and is intended to help in establ

32、ishing a common approach for capturing the different, time dependant, performance requirements of rolling stock from an operator/business perspective. EN 50126-1 is a standard, which treats the overall aspects of RAMS in Railway Applications. This guide deals with the application of RAM part of EN 5

33、0126-1 to rolling stock only, as stated in the Scope and clarifies areas where EN 50126-1 could be misinterpreted. 6 CLC/TR 50126-3:2008 1 Scope This document provides guidance on applying the RAM requirements in EN 50126-1 to rolling stock and for dealing with RAM activities during the system life

34、cycle phases from invitation to tender to demonstration in operation only. All references to EN 50126-1 concern the version of 1998. The guide is aimed at the customers/operators and main suppliers of rolling stock. The main purpose of the guide is to: enable a customer/operator of rolling stock: to

35、 specify the RAM requirements addressing the type of operation in terms of the end customer needs, considering service availability and economic considerations; to evaluate different tenders, in terms of RAM requirements, on a common basis with the aid of specific RAM documents; to gain assurance, d

36、uring design/development phase, that the rolling stock being offered is likely to satisfy the RAM contractual requirements by examining step by step detailed and specific RAM documents as an output of the RAM activities performed during the development phase; to validate that the rolling stock, as d

37、elivered, satisfies the specified RAM requirements to enable the main supplier of rolling stock to understand the customers/operators RAM requirements to provide substantive information/visibility in a tender to show that the product offered is likely to satisfy the RAM requirements by performing pr

38、eliminary RAM analysis; to provide substantive information during design/development phase to show that the product offered is likely to satisfy the RAM requirements by performing detailed RAM analysis; to demonstrate that the product delivered satisfies the RAM requirements; Regarding LCC, this app

39、lication guide is restricted to providing only the key RAM parameters necessary to be incorporated into an LCC Model. This application guide excludes: RAM values connected to the different RAM requirements (however, it contains a simple guide line of actions for supporting the decision making proces

40、s and choosing appropriate values, see 5.4) specific RAM documents to be produced and activities to be performed. However, it provides, only as an example, typical data and document templates for recording the output of a RAM analysis). 2 Definitions For the purposes of this document, the terms and

41、definitions given in EN 50126-1 and the following apply: 2.1 Part Number the alphanumeric code, generally assigned by the Main Supplier, to represent a family of items with the same characteristics of Form, Fit and Function 7 CLC/TR 50126-3:20083 Approach adopted for the Guide 3.1 General The approa

42、ch adopted is to raise the following questions, for each phase of the Life Cycle, in order to successively set up the requirements of EN 50126-1 and the basis for satisfying them: WHAT: what activities / tasks are to be performed and the supporting documents to be produced? WHO: who has the responsi

43、bility for these activities / tasks? HOW: which type of method or tool should be used? This process is adopted for the development of the guide and should be applied in accordance with the structure of the application guide. 3.2 Entities Involved In the Life Cycle Phases of Rolling Stock Depending o

44、n the organisational and management structure of the railway system concerned, a number of entities, performing different functions, may be involved within the life cycle phases of rolling stock. For the purpose of guidance on contractual relations, the entities are divided into 2 main categories, i

45、.e. customer and supplier. It is therefore advisable, to identify all the entities that can be a part of this relationship and to examine how the responsibilities of dealing with these entities are shared between the customer and supplier relationship. Table 1 gives some typical examples only: Table

46、 1 Possible sharing of responsibility Entity Supplier responsibility Customer responsibility Main supplier of the rolling stock X Sub supplier of the rolling stock X Operator of the rolling stock X Owner of the rolling stock X Maintainer of the rolling stock X X 4 Application of this Guide 4.1 Objec

47、t of the application This document is applicable to rolling stock (train, coach, locomotive, etc) and to all the subsystems, assemblies and parts belonging to the rolling stock, according to their boundary limits. Referring to 1.2 of EN 50126-1, the Guide is for use by Railway Authorities and the ra

48、ilway support industry and is applicable to: new rolling stock, modification/refurbishment of existing rolling stock. For use in this document only, the above two bullet point items should be referred to by the generic term “system”, comprising the complete sequence “system, sub-system, component” o

49、f a rolling stock or the whole rolling stock itself breakdown structure. 8 CLC/TR 50126-3:2008 4.2 Application of EN 50126-1 4.2.1 Assessment of the application of EN 50126-1 Referring to 5.3 of EN 50126-1 and taking into account the responsibilities of the different entities involved in the life cycle phase

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