A procedure for the wear prediction of collector strip and contact wire in pantograph–catenary system

Bucca, Giuseppe; Collina, Andrea

doi:10.1016/j.wear.2008.05.006

Cited by 183 publications

(112 citation statements)

References 15 publications

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“…The pantograph vertical acceleration is employed to reflect and diagnose the state of contact wire irregularity. Based on a specialized test rig, the model for contact wire wear prediction was proposed in [126]. Van et al [34] investigated impacts of the geometric irregularity and the wear of contact wire, respectively, on pantograph-catenary interaction using simulation.…”

Section: Static State Evaluation Of Catenary Systemmentioning

confidence: 99%

Advances of research on high-speed railway catenary

Liu

Song

et al. 2017

J. Mod. Transport.

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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

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Section: Static State Evaluation Of Catenary Systemmentioning

confidence: 99%

Advances of research on high-speed railway catenary

Liu

Song

et al. 2017

J. Mod. Transport.

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“…An improved approach in which these can be represented is to model the contact and catenary wires as Euler-Bernoulli beams, with forces applied at discrete locations to simulate the dynamic boundary conditions; stiffness and damping properties of components such as droppers and registration arms can also be included (Bucca and Collina, 2007). The Euler-Bernoulli and Timoshenko beam methods are highly compatible with non-linear FEA, where the contact and catenary wires are discretised and the differential equations are solved for each individual section.…”

Section: Modelling Approachesmentioning

confidence: 99%

“…Pantographs were represented as lumped mass models, and the results were validated against data collected from the Italian rail network. Bucca and Collina (2007) have applied the model in conjunction with physical experimentation to predict the wear of both contact wires and pantograph collector strips.…”

Section: Modelling Approachesmentioning

confidence: 99%

Validation of a new model for railway overhead line dynamics

Beagles

Fletcher

Peffers

et al. 2016

Proceedings of the Institution of Civil Engineers - Transport

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This paper presents details of a new model of railway overhead electric power line dynamics for prediction of contact wire-pantograph contact forces and wire uplift. It is validated against data from EN50318:2002, and against data from track tests conducted at Network RailÕs Melton Rail Innovation and Development Centre using a class 395 high speed electric multiple unit. Its advantage over previous approaches is its implantation in a commercial nonlinear finite element package allowing application for a wide range of overhead line geometry.Overhead electric lines and their support structures are highly stressed components largely without redundancy, and their integrity (both mechanical and electrical) is crucial to the functioning of railway infrastructure. Their failure can be understood in terms of component wear, fatigue and corrosion, in addition to electrical equipment life expiry. These processes are driven by a combination of factors including cable tension, dynamic load from current collection pantographs, the frequency of support, and environmental loading (e.g. sparking and sidewinds). The model described here is able to support decision making and cost effectiveness regarding these aspects for new installations (e.g. designing for compliance with EN50119:2009) and for maintenance of existing systems. The route for further extending its capabilities is outlined.

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“…In China, according to what has been named the "Mid-and long-term railway network plan", passenger lines exceeding 16,000 km will be built by the year of 2020. Meanwhile, the work reliability and safety issues of electric railway are gaining more and more attention, and the service property of pantograph/contact wire systems has become a research hotspot [4,5].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of the Sliding Electric Contact of Pantograph/Contact Wire Systems in Electric Railways

Jie

Wei

et al. 2017

Energies

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Abstract:The sliding electric contact of pantograph/contact wire systems plays a significant part in the current collection stability and operation life of pantograph/contact wire systems. This paper addresses the evolutionary process of sliding electric contact of pantograph/contact wire systems by analyzing three key characteristics including contact resistance, temperature distribution and microstructure. The influence of electric current on contact resistance was interpreted. Furthermore, the evolution of the spatial temperature distribution of the carbon strip was obtained in the zigzag movement, while the dominant role of electric effect in temperature rise was demonstrated. In the end, the wear morphology differences under pure friction and current-carrying conditions were analyzed. The formation of radial cracks was illustrated and its influenced on the wear process was discussed.

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A procedure for the wear prediction of collector strip and contact wire in pantograph–catenary system

Cited by 183 publications

References 15 publications

Advances of research on high-speed railway catenary

Advances of research on high-speed railway catenary

Validation of a new model for railway overhead line dynamics

Characteristics of the Sliding Electric Contact of Pantograph/Contact Wire Systems in Electric Railways

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