A Three-Dimensional Train-Structure Interaction Methodology: Experimental Validation

P. A. Montenegro, S. G M Neves, R. Calçada, M. Tanabe, M. Sogabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A wheel-rail contact method for analyzing the train-structure nonlinear interaction that takes into account the wheel and rail geometry is proposed in this article. The presented formulation is divided into three main parts: 1) the geometric problem consisting of the detection of the contact point and the calculation of all the geometric variables needed for determining the contact forces; 2) the normal contact problem in which the forces are determined based on the Hertz nonlinear theory; 3) the tangential contact problem in which the forces are calculated using the rolling friction laws proposed by Kalker. Most of the existing methods treat the contact forces in the normal and tangential directions as external forces, whereas the present formulation uses a contact element that takes into account the constitutive behaviour in the contact interface. The constraint equations that relate the displacements of the vehicle and structure are imposed using a direct method. The proposed method is validated using the results obtained in an experimental test consisting of a railroad car running over a rolling stock plant subjected to a lateral deviation.

Original languageEnglish
Title of host publicationProceedings of the Second International Conference on Railway Technology
Subtitle of host publicationResearch, Development and Maintenance
EditorsJ. Pombo
Place of PublicationStirlingshire, UK
PublisherCivil-Comp Press
Volume104
ISBN (Print)9781905088591
Publication statusPublished - 2014
Externally publishedYes

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  • Cite this

    Montenegro, P. A., Neves, S. G. M., Calçada, R., Tanabe, M., & Sogabe, M. (2014). A Three-Dimensional Train-Structure Interaction Methodology: Experimental Validation. In J. Pombo (Ed.), Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance (Vol. 104). [71] Stirlingshire, UK: Civil-Comp Press.