Computational Technology Resources - CCP

Keywords: pantograph-catenary interaction, aerodynamics, interaction, co-simulation.

Summary

The aim of this paper is to investigate the influence of the aerodynamic forces of pantograph on the dynamic performances of pantograph-catenary system. Based on the pantograph-catenary coupling dynamics and aerodynamics, a co-simulation method considering the interaction between a pantograph and airflow is presented in this paper. The aerodynamic forces of the pantograph were computed by the finite volume method and the dynamic behaviours of the pantograph were obtained by the finite element method. In this method, the displacements of the pantograph calculated by the pantograph-catenary coupling dynamics procedure were transmitted to the aerodynamic model of the pantograph and the dynamic mesh method was used to realize the motion of the pantograph in every simulation time step. Similarly, the aerodynamic forces, of the pantograph applied on the model of pantograph-catenary coupling dynamics, were obtained by the updated aerodynamic model of the pantograph. A monitor program was designed to solve the problem caused by the difference of the time needed for calculation between the computational fluid dynamics and the pantograph-catenary coupling dynamics. Aerodynamic forces and dynamic performances of the pantograph were numerically simulated at a speed of 300 km/h. Results show that the interaction between the airflow and the pantograph has great effects on aerodynamic forces, contact forces and displacements of the contact wire. Consequently, it is necessary to consider the interaction between airflow and a pantograph to study the influences of the aerodynamic forces on the dynamic behaviours of pantograph and catenary.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £65 +P&P)

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 147 Analysis of Pantograph-Catenary Dynamic Performance in Consideration of Fluid-Solid Coupled Vibration of Pantograph R. Li, N. Zhou, G. Mei and W. Zhang State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan, China doi:10.4203/ccp.104.147 purchase the full-text of this paper Full Bibliographic Reference for this paper R. Li, N. Zhou, G. Mei, W. Zhang, "Analysis of Pantograph-Catenary Dynamic Performance in Consideration of Fluid-Solid Coupled Vibration of Pantograph", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 147, 2014. doi:10.4203/ccp.104.147 Keywords: pantograph-catenary interaction, aerodynamics, interaction, co-simulation. Summary The aim of this paper is to investigate the influence of the aerodynamic forces of pantograph on the dynamic performances of pantograph-catenary system. Based on the pantograph-catenary coupling dynamics and aerodynamics, a co-simulation method considering the interaction between a pantograph and airflow is presented in this paper. The aerodynamic forces of the pantograph were computed by the finite volume method and the dynamic behaviours of the pantograph were obtained by the finite element method. In this method, the displacements of the pantograph calculated by the pantograph-catenary coupling dynamics procedure were transmitted to the aerodynamic model of the pantograph and the dynamic mesh method was used to realize the motion of the pantograph in every simulation time step. Similarly, the aerodynamic forces, of the pantograph applied on the model of pantograph-catenary coupling dynamics, were obtained by the updated aerodynamic model of the pantograph. A monitor program was designed to solve the problem caused by the difference of the time needed for calculation between the computational fluid dynamics and the pantograph-catenary coupling dynamics. Aerodynamic forces and dynamic performances of the pantograph were numerically simulated at a speed of 300 km/h. Results show that the interaction between the airflow and the pantograph has great effects on aerodynamic forces, contact forces and displacements of the contact wire. Consequently, it is necessary to consider the interaction between airflow and a pantograph to study the influences of the aerodynamic forces on the dynamic behaviours of pantograph and catenary. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
Back to top	©Civil-Comp Limited 2023 - terms & conditions