Study on Wind-Induced Vibration Behavior of Railway Catenary in Spatial Stochastic Wind Field Based on Nonlinear Finite Element Procedure

Song, Ye‐Qiong; Liu, Zhigang; Duan, Fuchuan; Lu, Xiaobing; Wang, Hongrui

doi:10.1115/1.4037521

Cited by 37 publications

(34 citation statements)

References 36 publications

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“…Song et al [8] present a nonlinear modelling method for catenary based on the explicit formula of cable and truss elements. Considering realistic disturbances to the catenary, the wind load [9], aerodynamic instability [10] and vehicle-track perturbation [11] are included in the numerical models to evaluate their effects on the pantograph-catenary interaction. To reproduce the realistic defects of catenary, the contact wire irregularities [12], [13], dropper defect [14] and wear [15] are included in the assessment of current collection quality.…”

Section: B Literature Reviewmentioning

confidence: 99%

Assessment of the High-Frequency Response in Railway Pantograph-Catenary Interaction Based on Numerical Simulation

Song

Rönnquist

Nåvik

2020

IEEE Trans. Veh. Technol.

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The numerical model is a well-acknowledged tool to evaluate railway pantograph-catenary interaction performance. The current standard restricts most current simulation tools by a cutoff frequency of 20 Hz. This low-frequency range of interest cannot fully describe the current collection quality of pantographcatenary. This paper includes simulation with cutoff frequencies up to 200 Hz to investigate the high-frequency behaviour of pantograph-catenary interaction. The reference model of pantograph-catenary in the benchmark is taken as the analysis object. Firstly, the effect of key simulation parameters of the resulting contact force is investigated. A small element length in the finite element model is proposed to prevent the frequency range of interest being contaminated by the numerical error. The contact stiffness has an opposite effect on the contact force in low and high-frequency ranges. Then the source and the amplification factor of high-frequency components of contact force are investigated. The results show that the half and quarter of the dropper/steady arm interval length presents the primary source of high-frequency components of the contact force. The corresponding wavelength can also be found in the high-order modes of the catenary. Finally, a variable time step procedure is also proposed to capture the contact loss occurring at high frequencies accurately. The comparison of the results between the variable and constant time steps indicates that the traditional constant time step may result in errors when calculating the contact loss duration.

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Section: B Literature Reviewmentioning

confidence: 99%

Assessment of the High-Frequency Response in Railway Pantograph-Catenary Interaction Based on Numerical Simulation

Song

Rönnquist

Nåvik

2020

IEEE Trans. Veh. Technol.

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“…Song, Liu, et al 4 have developed nonlinear finite element model of the catenary based upon cable and truss elements. Furthermore, wind-induced vibration has been analysed using a computational fluid dynamics software 5,6 . An optimisation of existing catenary systems has been carried out by constructing a three dimensional finite element model 7 .…”

Section: Introductionmentioning

confidence: 99%

Dynamically substructured testing of railway pantograph/catenary systems

Kobayashi

Stoten

Yamashita

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part F:

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This paper presents a methodology for testing railway pantograph/catenary systems based upon the dynamically substructured system (DSS) approach for combined physical and numerical components, originally developed by Stoten and Hyde. The main advantage of DSS is that it can provide more stable substructured testing than alternative schemes, such as the commonly used hybrid simulation method, often referred to as hardware-in-the-loop simulation. The developed method is validated through experiments using a simple pantograph rig, together with a numerical simulation of the catenary. In order to realise a real-time simulation of the large catenary model, for the first time in DSS testing this study uses (I) a modal analysis technique to reduce the dimension of the contact wire model and (II) a moving window approach to represent long-distance travel of the pantograph. Finally, the experimental DSS test results are compared with simulations of the benchmark pantograph/catenary emulated system.

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“…The results indicate that the aerodynamic coefficients C L and C D are changed by the ice covering the contact line, which may influence the wind-induced vibration behavior. Reference [74] develops a spatial wind field along the catenary and conducted the sensitivity analysis of the structural parameters on the wind-induced vibration behavior of the catenary.…”

Section: Effect Of Wind Load On Catenarymentioning

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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Study on Wind-Induced Vibration Behavior of Railway Catenary in Spatial Stochastic Wind Field Based on Nonlinear Finite Element Procedure

Cited by 37 publications

References 36 publications

Assessment of the High-Frequency Response in Railway Pantograph-Catenary Interaction Based on Numerical Simulation

Assessment of the High-Frequency Response in Railway Pantograph-Catenary Interaction Based on Numerical Simulation

Dynamically substructured testing of railway pantograph/catenary systems

Advances of research on high-speed railway catenary

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