The Influence of the Maintenance State of Track and Bogie Components on the Track-Vehicle Interaction and Loading

Verardi, R.; Ariaudo, Caterina; Pombo, João

doi:10.4203/ccp.104.269

Cited by 2 publications

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“…The application of the criteria required by the normative related to running safety, ride quality and track fatigue, assessed on a case-by-case basis, allow to evaluate if the loads are more impacting the vehicle's or the track's damage. The interested reader can find more details in references [1,71,95,96]. In the following some examples of impact analysis are provided.…”

Section: Identification Of Relevant Case Studiesmentioning

confidence: 99%

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Impact of rail infrastructure maintenance conditions on the vehicle-track interaction loads

Ariaudo¹,

Verardi²,

Pombo

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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The rail infrastructure and the track components are expensive assets with long life spans and high maintenance costs. The cost efficiency, performance and punctuality of train operations heavily depend on the track conditions. Ideally, the railway track would be completely smooth providing continuous support to the rolling stock running on it. In practice, however, the infrastructure cannot be installed without irregularities. These defects will increase over time due to the service loads imposed by the railway vehicles. The aim of this work is to use advanced computational tools to predict how the vehicles will respond to changing levels of track defects. For this purpose, the track and its maintenance conditions are characterized in realistic operation scenarios and modelled with detail in order to enable studying the interaction loads that are imposed to the vehicles by the track conditions. The presented methodology enables to identify the track health indexes that have higher influence on the dynamic loads transmitted to the rolling stock. It was observed that the track layout, track irregularities and degradation of the rails have the larger influence on the vehicle-track interaction loads with consequences in terms of safety and maintenance costs. In this way, this work contributes to the development of solutions with technological relevance, giving answer to the industry’s most recent needs in terms of reducing the maintenance costs and decreasing the incidents that cause traffic disruptions, contributing to improve the competitiveness of the railway transport.

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Section: Identification Of Relevant Case Studiesmentioning

confidence: 99%

“…The interested reader can find more details in references. 1,71,95,96 In the following some examples of impact analysis are provided.…”

Section: Identification Of Relevant Case Studiesmentioning

confidence: 99%

Impact of rail infrastructure maintenance conditions on the vehicle-track interaction loads

Ariaudo¹,

Verardi²,

Pombo

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

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Impact of maintenance conditions of vehicle components on the vehicle–track interaction loads

Verardi¹,

Ariaudo²,

Pombo

2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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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.

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The Influence of the Maintenance State of Track and Bogie Components on the Track-Vehicle Interaction and Loading

Cited by 2 publications

References 0 publications

Impact of rail infrastructure maintenance conditions on the vehicle-track interaction loads

Impact of rail infrastructure maintenance conditions on the vehicle-track interaction loads

Impact of maintenance conditions of vehicle components on the vehicle–track interaction loads

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