A new methodology to study the pantograph-catenary dynamics in curved railway tracks

P Antunes, Jorge Ambrosio, Joao Pombo, Alan Facchinetti

Research output: Contribution to journalArticle

Abstract

The pantograph–catenary system is responsible to provide an uninterrupted energy supply to power electric traction railway vehicles. The analysis of the dynamic behaviour of the catenary and pantograph, as well as its interaction, has been the objective of active research to improve energy collection quality. This work proposes an approach for the fully three-dimensional dynamic analysis of pantograph–catenary interaction in general railway tracks including curves. The catenary model and the trajectory of the pantograph base are defined with respect to the track geometry considering the conventional definition used by the rail industry, i.e. the track curvature, cross-level and vertical position. The pantograph is modelled using a multibody formulation being its base motion constrained to follow the generalised trajectory from the railway vehicle roof. The finite element method is used to model the catenary. A co-simulation procedure is set to establish the coupled dynamics of the two systems. In order to demonstrate the methodology, setup models for curved catenaries, analyse modelling implications and highlight applicability, realistic case studies of pantograph–catenary interaction in high-speed rail operations are presented and discussed. In the process, significant differences are found in the dynamic response of the catenary in curved and straight tracks.

LanguageEnglish
Number of pages28
JournalVehicle System Dynamics
Early online date20 Mar 2019
DOIs
Publication statusE-pub ahead of print - 20 Mar 2019

Fingerprint

Pantographs
Rails
Trajectories
Electric traction
Railroad tracks
Roofs
Dynamic analysis
Dynamic response
Finite element method
Geometry
Industry

Cite this

@article{b9e2c7706e4a4b818fa64fc89c02863c,
title = "A new methodology to study the pantograph-catenary dynamics in curved railway tracks",
abstract = "The pantograph–catenary system is responsible to provide an uninterrupted energy supply to power electric traction railway vehicles. The analysis of the dynamic behaviour of the catenary and pantograph, as well as its interaction, has been the objective of active research to improve energy collection quality. This work proposes an approach for the fully three-dimensional dynamic analysis of pantograph–catenary interaction in general railway tracks including curves. The catenary model and the trajectory of the pantograph base are defined with respect to the track geometry considering the conventional definition used by the rail industry, i.e. the track curvature, cross-level and vertical position. The pantograph is modelled using a multibody formulation being its base motion constrained to follow the generalised trajectory from the railway vehicle roof. The finite element method is used to model the catenary. A co-simulation procedure is set to establish the coupled dynamics of the two systems. In order to demonstrate the methodology, setup models for curved catenaries, analyse modelling implications and highlight applicability, realistic case studies of pantograph–catenary interaction in high-speed rail operations are presented and discussed. In the process, significant differences are found in the dynamic response of the catenary in curved and straight tracks.",
keywords = "Railway dynamics, 3D Pantograph-Catenary interaction, Co-Simulation, Curved tracks, Contact Mechanics, 3D Pantograph–catenary interaction, Contact mechanics",
author = "P Antunes and Jorge Ambrosio and Joao Pombo and Alan Facchinetti",
year = "2019",
month = "3",
day = "20",
doi = "10.1080/00423114.2019.1583348",
language = "English",
journal = "Vehicle System Dynamics",
issn = "0042-3114",
publisher = "Taylor and Francis Ltd.",

}

A new methodology to study the pantograph-catenary dynamics in curved railway tracks. / Antunes, P; Ambrosio, Jorge; Pombo, Joao; Facchinetti, Alan.

In: Vehicle System Dynamics, 20.03.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A new methodology to study the pantograph-catenary dynamics in curved railway tracks

AU - Antunes, P

AU - Ambrosio, Jorge

AU - Pombo, Joao

AU - Facchinetti, Alan

PY - 2019/3/20

Y1 - 2019/3/20

N2 - The pantograph–catenary system is responsible to provide an uninterrupted energy supply to power electric traction railway vehicles. The analysis of the dynamic behaviour of the catenary and pantograph, as well as its interaction, has been the objective of active research to improve energy collection quality. This work proposes an approach for the fully three-dimensional dynamic analysis of pantograph–catenary interaction in general railway tracks including curves. The catenary model and the trajectory of the pantograph base are defined with respect to the track geometry considering the conventional definition used by the rail industry, i.e. the track curvature, cross-level and vertical position. The pantograph is modelled using a multibody formulation being its base motion constrained to follow the generalised trajectory from the railway vehicle roof. The finite element method is used to model the catenary. A co-simulation procedure is set to establish the coupled dynamics of the two systems. In order to demonstrate the methodology, setup models for curved catenaries, analyse modelling implications and highlight applicability, realistic case studies of pantograph–catenary interaction in high-speed rail operations are presented and discussed. In the process, significant differences are found in the dynamic response of the catenary in curved and straight tracks.

AB - The pantograph–catenary system is responsible to provide an uninterrupted energy supply to power electric traction railway vehicles. The analysis of the dynamic behaviour of the catenary and pantograph, as well as its interaction, has been the objective of active research to improve energy collection quality. This work proposes an approach for the fully three-dimensional dynamic analysis of pantograph–catenary interaction in general railway tracks including curves. The catenary model and the trajectory of the pantograph base are defined with respect to the track geometry considering the conventional definition used by the rail industry, i.e. the track curvature, cross-level and vertical position. The pantograph is modelled using a multibody formulation being its base motion constrained to follow the generalised trajectory from the railway vehicle roof. The finite element method is used to model the catenary. A co-simulation procedure is set to establish the coupled dynamics of the two systems. In order to demonstrate the methodology, setup models for curved catenaries, analyse modelling implications and highlight applicability, realistic case studies of pantograph–catenary interaction in high-speed rail operations are presented and discussed. In the process, significant differences are found in the dynamic response of the catenary in curved and straight tracks.

KW - Railway dynamics

KW - 3D Pantograph-Catenary interaction

KW - Co-Simulation

KW - Curved tracks

KW - Contact Mechanics

KW - 3D Pantograph–catenary interaction

KW - Contact mechanics

UR - http://www.scopus.com/inward/record.url?scp=85063230110&partnerID=8YFLogxK

U2 - 10.1080/00423114.2019.1583348

DO - 10.1080/00423114.2019.1583348

M3 - Article

JO - Vehicle System Dynamics

T2 - Vehicle System Dynamics

JF - Vehicle System Dynamics

SN - 0042-3114

ER -