Developed moving mesh method for high-speed railway pantograph-catenary interaction based on nonlinear finite element procedure

Yang Song, Zhigang Liu, Zhao Xu, Jing Zhang

Research output: Contribution to journalArticle

Abstract

In modern electrified railway industries, the transmission quality of the electric power from the power supply to the locomotive is determined by the dynamic performance of the catenary-pantograph interaction. The mathematical modelling is a high-performance tool to study the dynamic behaviour of the catenary-pantograph system. In order to improve the calculation efficiency, a moving mesh method is implemented with a nonlinear finite element model of catenary. The contact wire is re-meshed according to the contact point between the pantograph and the catenary in each simulation time step. Addressing the unbalanced forces caused by re-meshing the contact wire, an iterative procedure is proposed based on the equilibrium equations of the flexible cable element. Through the analysis of simulation results, the proposed method shows good performance in improving the simulation efficiency and eliminating unbalanced forces. The comparison with the measurement data demonstrates the preliminary validation of the proposed method.

LanguageEnglish
Pages173-190
Number of pages18
JournalInternational Journal of Rail Transportation
Volume7
Issue number3
Early online date11 Oct 2018
DOIs
Publication statusPublished - 3 Jul 2019
Externally publishedYes

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Pantographs
German Federal Railways
contact
simulation
interaction
Wire
performance
efficiency
mathematical modeling
Locomotives
Point contacts
Cables
industry
Industry

Cite this

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title = "Developed moving mesh method for high-speed railway pantograph-catenary interaction based on nonlinear finite element procedure",
abstract = "In modern electrified railway industries, the transmission quality of the electric power from the power supply to the locomotive is determined by the dynamic performance of the catenary-pantograph interaction. The mathematical modelling is a high-performance tool to study the dynamic behaviour of the catenary-pantograph system. In order to improve the calculation efficiency, a moving mesh method is implemented with a nonlinear finite element model of catenary. The contact wire is re-meshed according to the contact point between the pantograph and the catenary in each simulation time step. Addressing the unbalanced forces caused by re-meshing the contact wire, an iterative procedure is proposed based on the equilibrium equations of the flexible cable element. Through the analysis of simulation results, the proposed method shows good performance in improving the simulation efficiency and eliminating unbalanced forces. The comparison with the measurement data demonstrates the preliminary validation of the proposed method.",
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Developed moving mesh method for high-speed railway pantograph-catenary interaction based on nonlinear finite element procedure. / Song, Yang; Liu, Zhigang; Xu, Zhao; Zhang, Jing.

In: International Journal of Rail Transportation, Vol. 7, No. 3, 03.07.2019, p. 173-190.

Research output: Contribution to journalArticle

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