Impact of Maintenance Conditions of Vehicle Components on the Vehicle-Track Interaction Loads

Naim Kuka, Riccardo Verardi, Caterina Ariaudo, João Pombo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

To improve the efficiency and competitiveness of railway transport, passenger and freight trains should travel faster and have increased payload, without losing the necessary levels of running safety and ride comfort, as well as assuring low aggressiveness on track and minimising the life cycle costs. Hence, the manufacturer’s challenge consists of improving the dynamic performance of the railway vehicles and reducing the loads on the track as well as on the rolling stock components. These objectives can be achieved through optimizing the design of the vehicle, while taking into consideration that the characteristics of the vehicle and of the track may change over time and space, and that they depend on the maintenance conditions of the vehicle and of the infrastructure. This work proposes a computational methodology to study how the varying vehicle component characteristics, on normal and degraded conditions, impact on the vehicle/track interaction loads and on the track damage. The purpose of this study is to trace a path towards a realistic definition of a load mission profile for the structural fatigue dimensioning of the vehicle components. The assessment criteria and the evaluated quantities are defined according to the EN14363 regulation.

Original languageEnglish
Pages (from-to)2626-2641
Number of pages16
JournalProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Volume232
Issue number15
Early online date31 Jul 2017
DOIs
Publication statusPublished - 1 Aug 2018
Externally publishedYes

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