An advanced 3D-model for the study and simulation of the pantograph catenary system

Benet, Jesús; Cuartero, Nuria; Cuartero, Fernando; Rojo, Tomás; Tendero, Pedro; Arias, Enrique

doi:10.1016/j.trc.2013.08.004

Cited by 33 publications

(19 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…But this is part of a major task, such as the interaction of pantograph and catenary, where this calculation plays an important role. This occurs also with our tool InDiCa, presented in [3], where an important part is this calculation that we present in this work. Another work, also more related to the dynamic interaction, is as follows.…”

Section: Related Applicationsmentioning

confidence: 69%

“…Also, an approach using FEM with absolute nodal coordinates is used in [2] in order to obtain the initial configuration and the length of the droppers in a railway catenary. In [3][4][5] different procedures are presented using FEM, where the cables are modeled as prestressed beams, according to the Euler-Bernoulli equation. In other studies, the static equations of wires are used, whereas in some cases we consider the exact weight of the cable as a uniform load per unit length, see [6], or by approaching such weight as a uniform load per unit of horizontal length (see [4]).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Algorithms for the Analysis of Initial Configuration in a Railway Catenary Structure and Its Code Implementation: A Software Tool CALPE

Benet

Cuartero

Rojo

et al. 2015

Mathematical Problems in Engineering

Self Cite

View full text Add to dashboard Cite

To obtain the best operating conditions in a railway infrastructure, as the pantograph/catenary system, is a priority issue in modern railways, for a correct management and the best performance of this infrastructure. Although most of the published works on this subject are oriented to solving dynamic problems, in order to successfully address these problems a previous static study is necessary. In this paper, we present a methodology for the study of the forces in a railway catenary, according to the equations of statics equilibrium. The results of this work have allowed us to develop two iterative algorithms that calculate a simple and computationally effective lengths of the droppers, which is crucial to determine the initial structural configuration of the catenary parameter. The obtained results have led us to the implementation of a tool to obtain very precise assemblies with significant savings in maintenance, therefore still being used by ADIF, the Spanish railway administration of railways infrastructures.

show abstract

Section: Related Applicationsmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Numerical Algorithms for the Analysis of Initial Configuration in a Railway Catenary Structure and Its Code Implementation: A Software Tool CALPE

Benet

Cuartero

Rojo

et al. 2015

Mathematical Problems in Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…Simultaneously, Mitsuru Ikeda et al [41][42][43] propose the detection and control strategy based on a nonlinear finite element catenary. Alberto and Bene [44,45] neglect the bending stiffness of the messenger/contact wire and develop the 2D and 3D simulation platforms for the pantograph-catenary system.…”

Section: Finite Element Modelmentioning

confidence: 99%

Advances of research on high-speed railway catenary

Liu

Song

et al. 2017

J. Mod. Transport.

View full text Add to dashboard Cite

The interaction between the catenary and pantograph is one of the most crucial factors that determine the train operation in high-speed railway. The bad state of catenary is able to directly influence the power supply safety of traction power system. In this paper, four aspects on the catenary research of high-speed railway are reviewed in detail, namely the solution methods for catenary equilibrium state, the dynamic modeling methods of catenary, non-contact detection methods of catenary, and the static and dynamic evaluation methods of catenary. In addition, their recent advances are described. For the low solution accuracy of the initial equilibrium state of catenary, the structure finding method with multi-objective constraint and nonlinear finite element procedure are introduced to solve the problem. For the catenary's dynamic modeling, considering the influence of environmental wind on the catenary, environmental wind simulations and wind tunnel tests are used to obtain the aerodynamic coefficients and build the wind field along the catenary for analysis of its wind vibration characteristics. In order to improve the detection accuracy of non-contact detection for the catenary, the deep learning theory and real-time detection algorithms should be adopted in the future. In view of the lack of dynamic assessment method for the catenary, the modern spectrum evaluation, timefrequency analysis, big data technology and their combinations will be the important means for future catenary evaluation.Keywords High-speed railway Á Modeling of catenary Á Simulation of catenary Á Detection of catenary Á Evaluation of catenary

show abstract

“…Cho et al [21] presented a modified SDOF dynamic system with a time-varying stiffness to include the pre-sag's effect on the dynamic interaction of the pantograph-catenary. To obtain more realistic simulation results, an advanced 3D model for studying and simulating the pantograph-catenary system was established by Benet et al [22]. Van et al [23] introduced catenary geometry irregularity, catenary wear, and transient aerodynamic forces into pantograph-catenary dynamic simulations.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Method Based on the Parametric Variational Principle for Simulating the Dynamic Behavior of the Pantograph‐Catenary System

Gao

Zhong

2018

Shock and Vibration

View full text Add to dashboard Cite

Based on the finite element method (FEM), the parametric variational principle (PVP) is combined with a numerical time-domain integral method to simulate the dynamic behavior of the pantograph-catenary system. Based on PVP, formulations for the nonlinear droppers in the catenary and for the contact between the pantograph and the contact wire are proposed. The formulations can accurately determine the tension state or compression state of the nonlinear droppers and the contact state between the pantograph and the contact wire. Based on the periodicity of the catenary and the precise integration method (PIM), a numerical timeintegration method is developed for the dynamic responses of the catenary. For this method, the matrix exponential of only one unit cell of the catenary is computed, which greatly improves the computational efficiency. Moreover, the validation shows that the formulations can compute the contact force accurately and represent the nonlinearity of the droppers, which demonstrates the accuracy and reliability of the proposed method. Finally, the dynamic behaviors of the pantograph-catenary system with different types of catenaries are simulated.

show abstract

An advanced 3D-model for the study and simulation of the pantograph catenary system

Cited by 33 publications

References 1 publication

Numerical Algorithms for the Analysis of Initial Configuration in a Railway Catenary Structure and Its Code Implementation: A Software Tool CALPE

Numerical Algorithms for the Analysis of Initial Configuration in a Railway Catenary Structure and Its Code Implementation: A Software Tool CALPE

Advances of research on high-speed railway catenary

A Numerical Method Based on the Parametric Variational Principle for Simulating the Dynamic Behavior of the Pantograph‐Catenary System

Contact Info

Product

Resources

About