GB/T 21562.3-2015 in English

《GB/T 21562.3-2015轨道交通 可靠性、可用性、可维修性和安全性规范及示例 第3部分：机车车辆RAM的应用指南》由TC278（全国轨道交通电气设备与系统标准化技术委员会）归口，主管部门为国家铁路局。
GB/T21562的本部分为GB/T21562―2008规定的从邀标/招标到运营验证等系统整个生命周期活动中机车车辆的RAM 要求的应用提供指导。
本部分适用于机车车辆(含动车组)的用户/运营者和主要供应商,主要规定了下列内容:
―――机车车辆的用户/运营者负责完成的工作:
. 详细说明RAM 需求,从最终用户需求、服务可用性和经济性方面来规定运营类型;
. 评估不同的投标者,根据规定的RAM 文档,在共同的基础上来评估RAM 的需求;
. 在设计/开发阶段,通过逐步详细检查RAM 活动执行过程中输出的、规定的RAM 文件,确认机车车辆是否满足RAM 要求;验证交付的机车车辆满足规定RAM 的需求。
―――机车车辆的主要供应商负责完成的工作:
. 了解用户/运营者对RAM 的需求;
. 在投标时,提供真实的业绩,通过执行初步的RAM 分析展示其提供的产品能满足RAM
需求;
. 在设计/开发阶段,提供真实的业绩,通过执行详细的RAM 分析展示其所提供的产品能
满足RAM 需求;
. 举证交货的产品满足RAM 需求。
对于LCC模型,本部分仅规定了所必需的关键RAM 参数。
本部分不包括下列内容:
―――与不同的RAM 需求相关的RAM 数值(但5.4提供简单的活动导则以便更深入的决策和选择适当的数值);
―――具体的RAM 文档和活动(但本部分给出了记录RAM 分析输出的典型数据和文件模板的示例)。

1 Scope

This part of GB/T 21562 provides guidance on applying the RAM requirements in GB/T 21562-2008 to rolling stock and for dealing with RAM activities during the system life cycle phases from invitation to tender to demonstration in operation only.

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 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, during 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; and to validate that the rolling stock, as delivered, satisfies the specified RAM requirements;

— 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 preliminary 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 part is restricted to providing only the key RAM parameters necessary to be incorporated into an LCC model.

This part excludes:

— RAM values connected to the different RAM requirements (however, it contains a simple guideline of actions for supporting the decision making process 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 Terms and Definitions

For the purposes of this document, the following terms and definitions 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

3 Approach Adopted for the Guide

3.1 General

The approach adopted is to raise the following questions, for each phase of the Life Cycle, in order to successively set up the requirements of GB/T 21562-2008 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 responsibility for these activities / tasks?

— HOW: which type of method or tool should be used?

This process is adopted for the development of this part and should be applied in accordance with the structure of the application guide.

Foreword II
Introduction IV
1 Scope
2 Terms and Definitions
3 Approach Adopted for the Guide
3.1 General
3.2 Entities involved in the life cycle phases of rolling stock
4 Application
4.1 Object of the application
4.2 Application of GB/T 21562-
5 Specifying RAM Requirements
5.1 Introductory remarks
5.2 Preliminary RAM analysis
5.3 RAM requirements
5.4 Process for choosing RAM figures
5.5 RAM programme
6 RAM Assurance During Life Cycle
6.1 General
6.2 Tender phase
6.3 Design phase
6.4 Demonstration phase
7 RAM Parameters of LCC Model
7.1 General
7.2 Overview of LCC modelling
7.3 RAM parameters for LCC
Annex A (Informative) Examples of Breakdown Structure
Bibliography