Relative Movement of Switch/Stock Rails and the Wheel/Rail Interaction Interface

Yann Bezin, Dimitrios Kostovasilis, Bello Sambo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)


Developing resilient and reliable switches and crossings is one of the key challenges of the railways for the future. Understanding the detailed interaction between the railway vehicle and the track is paramount in order to develop sustainable railway track components. In this paper, an investigation is carried out on the relative movement between the switch and stock rails under dynamics loading and the effect of their relative connection on the wheel/rail interface and the vehicle-track response. To do this, a multibody dynamics software track model is modified and compared to the default approach of using one solid rail profile throughout the switch-stock rail assembly. The results show that significant differences are present when the relative motion between switch and stock rail is accounted for. A sensitivity analysis on the modelling approach and rail-pad stiffness properties is also considered, showing that in comparison there is relatively much less variation based on track support properties. It is concluded that to accurately predict the dynamic behaviour of vehicle and track in switches it is crucial to account for the relative connection between the switch and stock rail and model them as two independent rail bodies.

Original languageEnglish
Title of host publicationAdvances in Dynamics of Vehicles on Roads and Tracks
Subtitle of host publicationProceedings of the 26th Symposium of the International Association of Vehicle System Dynamics, IAVSD 2019, August 12-16, 2019, Gothenburg, Sweden
EditorsMatthijs Klomp, Fredrik Bruzelius, Jens Nielsen, Angela Hillemyr
Number of pages9
ISBN (Electronic)9783030380779
ISBN (Print)9783030380762, 3030380769
Publication statusPublished - 14 Feb 2020
Event26th IAVSD International Symposium on Dynamics of Vehicles on Roads and Tracks - Gothenburg, Sweden
Duration: 12 Aug 201916 Aug 2019
Conference number: 26

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364


Conference26th IAVSD International Symposium on Dynamics of Vehicles on Roads and Tracks
Abbreviated titleIAVSD 2019
Internet address


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