Utilization of Non-Conformal Wheel Surfaces for Railway Dynamics

F. Marques, Hugo Pacheco Magalhaes, Joao Pombo, Jorge Ambrsio, Paulo Flores

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

Abstract

The dynamic analysis of railway systems using multibody systems formulation is nowadays a reliable tool for several studies, in which the wheelrail contact interaction has significant importance. The definition of contacting geometries affects directly the dynamic response of the system. For sake of simplicity and computational efficiency, some authors simplify the wheel profile to avoid its concave part. This work intends to study the impact of utilizing a simplified non-conformal profile instead of a real wheel profile. For this purpose, an Hertzian-based contact force model is used to compute either the normal and creep forces. A wheelset rolling over a straight track is used as demonstration case. The results show that although the location of the contact points is similar, the use of simplified wheel profile may have an extensive impact on the dynamic response of the system.
LanguageEnglish
Title of host publicationAdvances in Mechanism and Machine Science
Subtitle of host publicationProceedings of the 15th IFToMM World Congress on Mechanism and Machine Science
EditorsTadeusz Uhl
Pages3291-3300
Number of pages10
DOIs
Publication statusPublished - 14 Jun 2019
EventThe 15th IFToMM World Congress - Krakow, Poland
Duration: 30 Jun 20194 Jul 2019
http://iftomm2019.com/

Publication series

NameMechanisms and Machine Science
PublisherSpringer
Volume73
ISSN (Print)2211-0984

Conference

ConferenceThe 15th IFToMM World Congress
CountryPoland
CityKrakow
Period30/06/194/07/19
Internet address

Fingerprint

Wheels
Dynamic response
Point contacts
Computational efficiency
Dynamic analysis
Creep
Demonstrations
Geometry

Cite this

Marques, F., Pacheco Magalhaes, H., Pombo, J., Ambrsio, J., & Flores, P. (2019). Utilization of Non-Conformal Wheel Surfaces for Railway Dynamics. In T. Uhl (Ed.), Advances in Mechanism and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science (pp. 3291-3300). (Mechanisms and Machine Science; Vol. 73). https://doi.org/10.1007/978-3-030-20131-9_325
Marques, F. ; Pacheco Magalhaes, Hugo ; Pombo, Joao ; Ambrsio, Jorge ; Flores, Paulo. / Utilization of Non-Conformal Wheel Surfaces for Railway Dynamics. Advances in Mechanism and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science. editor / Tadeusz Uhl. 2019. pp. 3291-3300 (Mechanisms and Machine Science).
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abstract = "The dynamic analysis of railway systems using multibody systems formulation is nowadays a reliable tool for several studies, in which the wheelrail contact interaction has significant importance. The definition of contacting geometries affects directly the dynamic response of the system. For sake of simplicity and computational efficiency, some authors simplify the wheel profile to avoid its concave part. This work intends to study the impact of utilizing a simplified non-conformal profile instead of a real wheel profile. For this purpose, an Hertzian-based contact force model is used to compute either the normal and creep forces. A wheelset rolling over a straight track is used as demonstration case. The results show that although the location of the contact points is similar, the use of simplified wheel profile may have an extensive impact on the dynamic response of the system.",
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Marques, F, Pacheco Magalhaes, H, Pombo, J, Ambrsio, J & Flores, P 2019, Utilization of Non-Conformal Wheel Surfaces for Railway Dynamics. in T Uhl (ed.), Advances in Mechanism and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science. Mechanisms and Machine Science, vol. 73, pp. 3291-3300, The 15th IFToMM World Congress, Krakow, Poland, 30/06/19. https://doi.org/10.1007/978-3-030-20131-9_325

Utilization of Non-Conformal Wheel Surfaces for Railway Dynamics. / Marques, F.; Pacheco Magalhaes, Hugo; Pombo, Joao; Ambrsio, Jorge; Flores, Paulo.

Advances in Mechanism and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science. ed. / Tadeusz Uhl. 2019. p. 3291-3300 (Mechanisms and Machine Science; Vol. 73).

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

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Marques F, Pacheco Magalhaes H, Pombo J, Ambrsio J, Flores P. Utilization of Non-Conformal Wheel Surfaces for Railway Dynamics. In Uhl T, editor, Advances in Mechanism and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science. 2019. p. 3291-3300. (Mechanisms and Machine Science). https://doi.org/10.1007/978-3-030-20131-9_325