Journal ArticleDOI
Analysis of dynamic interaction between catenary and pantograph with experimental verification and performance evaluation in new high-speed line
TLDR
In this paper, the authors estimate the current collection performance of a catenary and pantograph of a high-speed train by using numerical analysis, in particular, the flexible multibody dynamic analysis technique.Abstract:
Understanding the dynamic interaction between the catenary and pantograph of a high-speed train is the one of the most important technical issues in the railway industry. This is because the catenary–pantograph system plays a crucial role in providing electric power to the railway vehicle for stable operation. The aim of the present paper is to estimate the current-collection performance of this system by using numerical analysis, in particular, the flexible multibody dynamic analysis technique. To implement large deformable catenary wires, an absolute nodal coordinate formulation is used for the cable element. Additionally, an efficient contact element and an interactive model for the catenary–pantograph system are introduced. Each developed model is then used for analytical and experimental verification. Actual on-line test results of existing high-speed railway vehicles are presented and used to verify the analysis model. Finally, the performance characteristics of a new 400 km/h-class high-speed line ...read more
Citations
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Journal ArticleDOI
A spatial coupling model to study dynamic performance of pantograph-catenary with vehicle-track excitation
TL;DR: The statistical analysis, stochastic analysis and frequency analysis are performed to make sense of the effect of the random track irregularities on the pantograph-catenary interaction, and the reliability of the pantographs shows a continuous decrease in the degradation of rail quality.
Journal ArticleDOI
Nonlinear analysis of wind-induced vibration of high-speed railway catenary and its influence on pantograph–catenary interaction
TL;DR: In this paper, the aerodynamic coefficients of the contact/messenger wire are calculated through computational fluid dynamics, and the wind-induced vibration response of catenary is analyzed with different wind speeds and angles.
Journal ArticleDOI
Active control of contact force for high-speed railway pantograph-catenary based on multi-body pantograph model
TL;DR: In this paper, a multi-body model of pantograph is established, and two configurations of installing actuators on a multibody pantograph are presented, in combination with a nonlinear finite element model of catenary, the control performance is evaluated through several numerical simulations.
Journal ArticleDOI
Advances of research on high-speed railway catenary
TL;DR: In view of the lack of dynamic assessment method for the catenary, the modern spectrum evaluation, time–frequency analysis, big data technology and their combinations will be the important means for future catenary evaluation.
Journal ArticleDOI
Wave propagation analysis in high-speed railway catenary system subjected to a moving pantograph
TL;DR: In this paper, the Fourier transform is exploited to find out the solution of the governing equation of the tensioned cable, whose vertical deflection is assumed as the superposition of two waves propagating to opposite sides.
References
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Journal ArticleDOI
Analysis of Thin Beams and Cables Using the Absolute Nodal Co-ordinate Formulation
TL;DR: In this paper, a lower-order cable element is introduced for thin structures where bending stiffness can be important in some applications, and the performance of this cable element was evaluated by comparing it with existing formulations using several examples.
Journal ArticleDOI
Three Dimensional Absolute Nodal Coordinate Formulation for Beam Elements: Implementation and Applications
R. Y. Yakoub,Ahmed A. Shabana +1 more
TL;DR: In this paper, two beam elements that relax the assumptions of Euler-Bernoulli and Timoshenko beam theories are developed, which take into account the effect of rotary inertia, shear deformation and torsion, and yet they lead to a constant mass matrix.
Journal ArticleDOI
Pantograph/Catenary Dynamics and Control
TL;DR: In this paper, an overview of the methods to describe the catenary and the pantograph system dynamics is presented, including the interaction between current collectors and overhead equipment, the acquisition of the model data and the verification are presented.
Journal ArticleDOI
Dynamic stiffness of a railway overhead wire system and its effect on pantograph–catenary system dynamics
T.X. Wu,Michael J. Brennan +1 more
TL;DR: In this paper, a periodically excited single-degree-of-freedom (SDOF) model of a combined pantograph-catenary system is introduced and its basic dynamic behaviour is discussed.