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- kumari, jaya, 1984-
(författare)
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A performance-driven framework with a system-of-systems approach for augmented asset management of railway system
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Ingår i: International Journal of Systems Assurance Engineering and Management. - 0975-6809 .- 0976-4348.
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Tidskriftsartikel (refereegranskat)abstract
- The railway system is a complex technical system-of-systems (SoS). To address the complexity of the railway system, a holistic approach is needed that facilitates the development of an appropriate asset management regime. A systems-of-systems (SoS) approach considers the complex nature of the railway system, comprising interconnected subsystems like rolling stock and infrastructure. Neglecting these interdependencies risks sub-optimization of the overall system performance. Asset management, of the railway system utilising a SoS approach ensures the focus of asset management on overall system requirements. The efficiency and effectiveness of the railway system is based on aspects such as availability, reliability, and safety performance. To enhance these aspects, monitoring, and improvement of key performance indicators (KPIs) emphasizing increased capacity and reduced operational costs is essential. The KPIs offer quantifiable parameters for performance optimization. Augmenting asset management through data-driven technologies can improve the efficiency and effectiveness of asset management. However, challenges persist in the implementation of data-driven solutions due to the railway system's complexity and lack of a holistic perspective. A systematic performance-driven framework with a system-of-systems approach for augmented asset management of railway system provides handrail for the utilisation of data-driven technologies with railway system requirements at the centre while developing an asset management regime. The proposed framework aims to establish a clear relationship between system KPIs, and the performance of sub-systems and components aiding railway organizations in asset management design and implementation. This paper explains the important components of the proposed framework and demonstrates the application the framework for asset management and maintenance planning of high value components in the fleet of railway rolling stock. Adoption of the proposed framework is expected to enhance asset management through development and implementation of data-driven solutions that are aligned with system KPIs, to support asset management decision making.
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| 2. |
- kumari, jaya, 1984-
(författare)
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Dynamic maintenance policy development for railway rolling stock
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Ingår i: Journal of Quality in Maintenance Engineering. - 1355-2511 .- 1758-7832.
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Tidskriftsartikel (refereegranskat)abstract
- PurposeThis paper proposes an approach for the development of a dynamic maintenance policy for the railway rolling stock system considering the dynamic characteristics of the system, the operation environment, and the maintenance process. The proposed approach can also be applied to other similar complex technical systems.Design/methodology/approachThis study explores the state-of-the-art in dynamic maintenance policy development for rolling stock to identify research gap. The proposed approach is demonstrated through a case study on dynamic maintenance policy development for rolling stock maintenance support planning, emphasizing constant assessment and improvement in the maintenance policy.FindingsThis study emphasises on the need for an effective, efficient, and dynamic maintenance policy that adapts to evolving system requirements such as organizational contexts, technological advancements, and regulatory requirements.This study finds that there are specific dynamic characteristics in each step of the maintenance policy development process. These dynamic characteristics are dependent on the changes in system requirements, the environment and in the maintenance process. The proposed approach for dynamic maintenance policy development provides a framework for the identification of these dynamic characteristics for different complex technical systems operating in a specific context.OriginalityDespite the significant impact of rolling stock maintenance on railway system availability, research in this area is limited. The proposed approach for maintenance policy development for rolling stock integrates adaptability and responsiveness to dynamic factors in the maintenance process and the system requirements. Thus, the proposed approach provides a guide for industry professionals and directions for future research in dynamic maintenance policy development for other similar complex technical systems.
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