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Railway track longitudinal force model
journal contribution
posted on 2020-09-23, 00:00 authored by Qing WuQing Wu, Yan SunYan Sun, Maksym SpiryaginMaksym Spiryagin, Colin ColeColin ColeMost railway track dynamics models focus on vertical and lateral directions. Vehicle dynamics have strong implications for track longitudinal dynamics, but railway track longitudinal force models are rarely published. This paper developed a three-dimensional railway track model which considers four structure layers: rails, sleepers, ballast and subballast. The rails are modelled using the Finite Element Method and each node has six Degrees of Freedom (DoFs). Sleepers are modelled as rigid bodies and each also has six DoFs. Ballast and subballast are modelled as blocks and each has three translational DoFs. Frictional behaviour is considered in the longitudinal direction of the fastening models as well as in the longitudinal and lateral directions of the sleeper-ballast force connections. Validations of the model are presented in this paper. Simulations of longitudinal forces are also presented. The results show that the model has the capability of simulating track longitudinal forces and the rail creep phenomenon. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.
History
Start Page
1End Page
16Number of Pages
16eISSN
1744-5159ISSN
0042-3114Publisher
Taylor & Francis, UKPublisher DOI
Peer Reviewed
- Yes
Open Access
- No
Acceptance Date
2019-09-15Author Research Institute
- Centre for Railway Engineering
Era Eligible
- Yes
Journal
Vehicle System DynamicsUsage metrics
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