The influence of the fairing shape and cross winds on the aerodynamic characteristics of pantograph

doi:10.4203/ccp.104.11

IMECH-IR > 流固耦合系统力学重点实验室

	The influence of the fairing shape and cross winds on the aerodynamic characteristics of pantograph
	Guo DL(郭迪龙); Yao Y; Yao SB; Yang GW(杨国伟)
会议录名称	PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
	2014
会议名称	THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
会议日期	8-11 April 2014
会议地点	Ajaccio, Corsica, France
摘要	The aerodynamic characteristics of pantograph have a great influence on the current collection of modern electric locomotive. It's an efficient method to install a suitable pantograph fairing to improve the pantograph aerodynamic performance. But the cross-wind is generally regarded as a key factor to worsen the aerodynamic characteristics of pantograph. The main objective of this paper is to investigate the influence of pantograph fairing shape and cross-wind speeds on the unsteady aerodynamic characteristics of pantograph by using the detached eddy simulation method. The results show that the flow field caused by pantograph has salient unsteady characteristics. In the cases of uninstalled fairing, the lift force fluctuation of pantograph slider intensify with the cross wind. And the lift force fluctuation will not be worse with the increasing of cross-wind speed. On the other hand, different designs of pantograph fairing largely affect the pantograph flow field and the aerodynamic forces of the pantograph slider. When the fairings are equipped in the pantograph system, the lift force fluctuation of pantograph slider increases without cross wind. However, both types of the fairing reduce the amplitude of lift force of pantograph slider with cross wind. In the end, the author gives the pantograph fairing aerodynamic optimization recommendations based on the research results. © Civil-Comp Press, 2014.
关键词	Flow fields Lift Pantographs Wind Aerodynamic characteristics Aerodynamic optimization Detached eddy simulations Lift force Unsteady aerodynamic characteristic Unsteady aerodynamics Unsteady characteristics Vibration
ISBN号	978-1-905088-59-1
收录类别	EI
语种	英语
引用统计
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/77998
专题	流固耦合系统力学重点实验室
作者单位	Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Guo DL,Yao Y,Yao SB,et al. The influence of the fairing shape and cross winds on the aerodynamic characteristics of pantograph[C]PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE,2014.