Railway Dynamics with Curved Contact Patch

Filipe Marques; Hugo Pacheco Magalhaes; Joao Pombo; Jorge Ambrósio; Paulo Flores

doi:10.1007/978-3-030-88751-3_11

Railway Dynamics with Curved Contact Patch

Filipe Marques, Hugo Pacheco Magalhaes, Joao Pombo, Jorge Ambrósio, Paulo Flores

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The wheel-rail contact modeling is of paramount importance for the dynamics of railway vehicles since it represents the interaction between the vehicle and the track. Although, in most cases, the contact generated occurs between convex surfaces which results in planar contact areas, the contact might take place in concave surfaces when negotiation sharp curves or due to the wear of profiles. In that cases, the resulting contact area is not planar. This work proposes a methodology to determine the shape of the contact patch in a curved surface, where the normal direction varies along its lateral direction. This method is based on a semi-Hertzian approach and discretizes the contact into longitudinal strips. The normal pressure distribution is computed in each strip separately using a non-Hertzian contact model and it is summed in a vector form to obtain the total normal force magnitude. Regarding the tangential forces, a look up table approach is considered. Finally, a trailer vehicle negotiating a curve is used to demonstrate the effectiveness of this methodology.

Original language	English
Title of host publication	Multibody Mechatronic Systems
Subtitle of host publication	MuSMe 2021
Editors	Martín Pucheta, Alberto Cardona, Sergio Preidikman, Rogelio Hecker
Place of Publication	Cham
Publisher	Springer Nature Switzerland AG
Pages	105-113
Number of pages	9
Edition	1st
ISBN (Electronic)	9783030887513
ISBN (Print)	9783030887506, 9783030887537
DOIs	https://doi.org/10.1007/978-3-030-88751-3_11
Publication status	Published - 14 Oct 2021
Event	7th International Symposium on Multibody Systems and Mechatronics - Virtual, Online Duration: 12 Oct 2021 → 15 Oct 2021 Conference number: 7 https://www.frc.utn.edu.ar/musme2021/

Publication series

Name	Mechanisms and Machine Science
Publisher	Springer Nature Switzerland AG
ISSN (Print)	2211-0984
ISSN (Electronic)	2211-0992

Conference

Conference	7th International Symposium on Multibody Systems and Mechatronics
Abbreviated title	MuSMe 2021
City	Virtual, Online
Period	12/10/21 → 15/10/21
Internet address	https://www.frc.utn.edu.ar/musme2021/

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Marques_et_al_MuSMe2021_v3Accepted author manuscript, 460 KBLicence: Unspecified

Cite this

@inproceedings{94c4260a410341e78dd8b8bef7d358fe,

title = "Railway Dynamics with Curved Contact Patch",

abstract = "The wheel-rail contact modeling is of paramount importance for the dynamics of railway vehicles since it represents the interaction between the vehicle and the track. Although, in most cases, the contact generated occurs between convex surfaces which results in planar contact areas, the contact might take place in concave surfaces when negotiation sharp curves or due to the wear of profiles. In that cases, the resulting contact area is not planar. This work proposes a methodology to determine the shape of the contact patch in a curved surface, where the normal direction varies along its lateral direction. This method is based on a semi-Hertzian approach and discretizes the contact into longitudinal strips. The normal pressure distribution is computed in each strip separately using a non-Hertzian contact model and it is summed in a vector form to obtain the total normal force magnitude. Regarding the tangential forces, a look up table approach is considered. Finally, a trailer vehicle negotiating a curve is used to demonstrate the effectiveness of this methodology.",

keywords = "Railway dynamics, Contact forces, Conformal contact, Non-Hertzian",

author = "Filipe Marques and {Pacheco Magalhaes}, Hugo and Joao Pombo and Jorge Ambr{\'o}sio and Paulo Flores",

note = "Funding Information: Acknowledgments. The first author is supported by the Portuguese Foundation for Science and Technology (FCT) under grant PD/BD/114154/2016, MIT Portugal Program. This work has been supported by FCT with the reference project POCI-01-0145-FEDER-028424, by FEDER funds through the COMPETE 2020 - Programa Operacional Competitividade e Internacionaliza-{\c c}{\~a}o. This work has been also supported by Portuguese Foundation for Science and Technology, under the national support to R&D units grant, with the reference project UIDB/04436/2020 and UIDP/04436/2020, as well as through IDMEC, under LAETA, project UIDB/50022/2020. Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.; 7th International Symposium on Multibody Systems and Mechatronics, MuSMe 2021 ; Conference date: 12-10-2021 Through 15-10-2021",

year = "2021",

month = oct,

day = "14",

doi = "10.1007/978-3-030-88751-3_11",

language = "English",

isbn = "9783030887506",

series = "Mechanisms and Machine Science",

publisher = "Springer Nature Switzerland AG",

pages = "105--113",

editor = "Mart{\'i}n Pucheta and Alberto Cardona and Sergio Preidikman and Rogelio Hecker",

booktitle = "Multibody Mechatronic Systems",

address = "Switzerland",

edition = "1st",

url = "https://www.frc.utn.edu.ar/musme2021/",

}

Marques, F, Pacheco Magalhaes, H, Pombo, J, Ambrósio, J & Flores, P 2021, Railway Dynamics with Curved Contact Patch. in M Pucheta, A Cardona, S Preidikman & R Hecker (eds), Multibody Mechatronic Systems: MuSMe 2021. 1st edn, Mechanisms and Machine Science, Springer Nature Switzerland AG, Cham, pp. 105-113, 7th International Symposium on Multibody Systems and Mechatronics, Virtual, Online, 12/10/21. https://doi.org/10.1007/978-3-030-88751-3_11

Railway Dynamics with Curved Contact Patch. / Marques, Filipe; Pacheco Magalhaes, Hugo; Pombo, Joao et al.

Multibody Mechatronic Systems: MuSMe 2021. ed. / Martín Pucheta; Alberto Cardona; Sergio Preidikman; Rogelio Hecker. 1st. ed. Cham : Springer Nature Switzerland AG, 2021. p. 105-113 (Mechanisms and Machine Science).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Railway Dynamics with Curved Contact Patch

AU - Marques, Filipe

AU - Pacheco Magalhaes, Hugo

AU - Pombo, Joao

AU - Ambrósio, Jorge

AU - Flores, Paulo

N1 - Conference code: 7

PY - 2021/10/14

Y1 - 2021/10/14

N2 - The wheel-rail contact modeling is of paramount importance for the dynamics of railway vehicles since it represents the interaction between the vehicle and the track. Although, in most cases, the contact generated occurs between convex surfaces which results in planar contact areas, the contact might take place in concave surfaces when negotiation sharp curves or due to the wear of profiles. In that cases, the resulting contact area is not planar. This work proposes a methodology to determine the shape of the contact patch in a curved surface, where the normal direction varies along its lateral direction. This method is based on a semi-Hertzian approach and discretizes the contact into longitudinal strips. The normal pressure distribution is computed in each strip separately using a non-Hertzian contact model and it is summed in a vector form to obtain the total normal force magnitude. Regarding the tangential forces, a look up table approach is considered. Finally, a trailer vehicle negotiating a curve is used to demonstrate the effectiveness of this methodology.

AB - The wheel-rail contact modeling is of paramount importance for the dynamics of railway vehicles since it represents the interaction between the vehicle and the track. Although, in most cases, the contact generated occurs between convex surfaces which results in planar contact areas, the contact might take place in concave surfaces when negotiation sharp curves or due to the wear of profiles. In that cases, the resulting contact area is not planar. This work proposes a methodology to determine the shape of the contact patch in a curved surface, where the normal direction varies along its lateral direction. This method is based on a semi-Hertzian approach and discretizes the contact into longitudinal strips. The normal pressure distribution is computed in each strip separately using a non-Hertzian contact model and it is summed in a vector form to obtain the total normal force magnitude. Regarding the tangential forces, a look up table approach is considered. Finally, a trailer vehicle negotiating a curve is used to demonstrate the effectiveness of this methodology.

KW - Railway dynamics

KW - Contact forces

KW - Conformal contact

KW - Non-Hertzian

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UR - https://link.springer.com/book/10.1007/978-3-030-88751-3

U2 - 10.1007/978-3-030-88751-3_11

DO - 10.1007/978-3-030-88751-3_11

M3 - Conference contribution

SN - 9783030887506

SN - 9783030887537

T3 - Mechanisms and Machine Science

SP - 105

EP - 113

BT - Multibody Mechatronic Systems

A2 - Pucheta, Martín

A2 - Cardona, Alberto

A2 - Preidikman, Sergio

A2 - Hecker, Rogelio

PB - Springer Nature Switzerland AG

CY - Cham

T2 - 7th International Symposium on Multibody Systems and Mechatronics

Y2 - 12 October 2021 through 15 October 2021

ER -

Railway Dynamics with Curved Contact Patch

Abstract

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UN SDGs

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