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High frequency vehicle-track interactionsimulation: Coupling of an advanced track model with a multi-bodysystem
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Railway Technology.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The forces caused by the high frequency vehicle-track interaction have a great impact on thetrack maintenance. They should be represented in vehicle-track models in order to predicttheir impact. As a result, a multi-body system (MBS) should be extended with an advancedtrack model. The MBS represents the vehicle and the wheel-rail contact with a great accuracy.The track will be modeled in two different ways: a moving track model and a continuous trackmodel which is a finite element modeling (FEM). The first one will be a lumped-mass model.The most advanced system will be the second one, which is a MBS-FEM representation andoffers a great precision to represent the high frequency dynamical properties. The system willbe used to simulate pertinent phenomena such as a wheelflats, corrugations and rail joint.Based on the literature and the measurements, the model is validated in a wider frequencyrange than the one currently used (0-20Hz). The results given by both models are close tothe literature and the measurement.

Place, publisher, year, edition, pages
2014. , 50 p.
Series
TRITA-AVE, ISSN 1651-7660 ; 2014:09
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-159277OAI: oai:DiVA.org:kth-159277DiVA: diva2:784019
Examiners
Available from: 2015-01-28 Created: 2015-01-28 Last updated: 2015-01-28Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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Output format
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