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A modelling approach for railway overhead line equipment asset management

机译：铁路架空线设备资产管理的建模方法

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摘要

The Overhead Line Equipment (OLE) is a critical sub-system of the 25 kV AC overhead railway electrification system. If OLE asset management strategies can be evaluated using a whole lifecycle cost analysis that considers degradation processes and maintenance activities of the OLE components, the investment required to deliver the level of performance desired by railway customers and regulators can be based on evidence from the analysis results. A High Level Petri Net (HLPN) model, proposed in this paper, is used to simulate the degradation, failure, inspection and maintenance of the main OLE components and to calculate various statistics, associated with the cost and reliability of the system over its lifecycle. The HLPN considers all the main OLE components in a single model and it can simulate fixed frequency inspections and condition-based maintenance regimes. In order to allow the relevant processes to be modelled accurately and efficiently, the HLPN features are used, such as specific data about individual components is taken account of in the general model. The HLPN, developed using international standards, is described in detail and a framework of its analysis for reliability and lifecycle cost evaluation is proposed. In this novel whole system model different OLE component types and their instances on a line are modelled simultaneously, and the dependencies are considered in terms of opportunistic inspection and maintenance. An example HLPN for the catenary wire is used to illustrate the model, and an application of the methodology for whole lifecycle cost evaluation of a two-mile OLE line is presented. (C) 2017 Elsevier Ltd. All rights reserved.
机译：架空线设备（OLE）是25 kV交流架空铁路电气化系统的关键子系统。如果可以使用考虑了OLE组件的降级过程和维护活动的整个生命周期成本分析来评估OLE资产管理策略，则可以基于分析结果中的证据来实现铁路客户和监管机构所需的性能水平所需的投资。本文提出的高级Petri网（HLPN）模型用于模拟主要OLE组件的退化，故障，检查和维护，并计算各种统计数据，以及系统在其整个生命周期中的成本和可靠性。 HLPN在一个模型中考虑了所有主要的OLE组件，并且可以模拟固定频率的检查和基于状态的维护制度。为了使相关过程能够准确有效地建模，使用了HLPN功能，例如在通用模型中考虑了有关各个组件的特定数据。详细介绍了使用国际标准开发的HLPN，并提出了其可靠性和生命周期成本评估分析框架。在这种新颖的整个系统模型中，同时对不同的OLE组件类型及其在线实例进行了建模，并从机会检查和维护的角度考虑了相关性。以悬链线HLPN为例来说明该模型，并提出了该方法在两英里OLE线的整个生命周期成本评估中的应用。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Reliability Engineering & System Safety》 |2017年第12期|326-337|共12页
  • 作者

    Kilsby Paul; Remenyte-Prescott Rasa; Andrews John;

  • 作者单位

    Univ Nottingham, Asset Management Sect, Resilience Engn Res Grp, Univ Pk, Nottingham NG7 2RD, England;

    Univ Nottingham, Asset Management Sect, Resilience Engn Res Grp, Univ Pk, Nottingham NG7 2RD, England;

    Univ Nottingham, Asset Management Sect, Resilience Engn Res Grp, Univ Pk, Nottingham NG7 2RD, England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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