双弓作用下弓网动力学性能

周宁; 张卫华

双弓作用下弓网动力学性能

周宁,
张卫华^,

基金项目:

国家自然科学杰出青年基金资助项目(50525518)

高等学校科技创新工程重大项目培养基金资助项目(705044)

国家973计划项目(2007CB714700)

详细信息

作者简介:
周宁(1977- ),男,博士研究生,研究方向为弓网动力学,电话:028-87634057,E-mail:zhou_ningbb@sina.com

通讯作者:
张卫华(1961- ),男,教授,博士,研究方向为机车车辆设计、动力学和实验,电话: 028-87601068, E-mail: tpl@home.swjtu.edu.cn

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出版历程
- 收稿日期: 2008-09-03

Dynamic Performances of Pantograph-Catenary System with Double Pantographs

ZHOU Ning,
ZHANG Weihua^,

摘要

摘要: 建立了接触网有限元模型和双弓集中质量模型,通过接触单元将二者耦合得到弓网系统模型.推导了系统的动力学平衡方程,用直接积分法计算弓网系统的动力学性能参数.结果表明:双弓运行时,后弓对前弓受流的影响较小,前弓对后弓的影响较大;双弓间距对前弓抬升位移和接触力影响较小,对后弓的影响较大.当双弓间距为90或150 m时,对后弓受流最不利;当双弓间距为200或210 m时,后弓受流较好.
- 接触网 /
- 受电弓 /
- 动力学性能 /
- 时间积分法
Abstract: Finite element models for the catenary and the double pantographs were derived.The latter was simplified as a multi-lumped-mass system.The two models was coupled by contact elements to form a pantograph-catenary system model,and its dynamic equilibrium equations were presented.The parameters in the pantograph-catenary system model were calculated with the time integration method.The results show that the rear pantograph has a little influence on the current collection performance of the front pantograph,and the front pantograph has an obvious impact on the rear pantograph.The space between the two pantographs has not obvious effect on uplift and contact force of the front pantograph,and has obvious impact on those of the rear pantograph.The current collection performance of the rear pantograph is the worst when the space between the two pantographs is 90 or 150 m,and the preferable space is 200 or 210 m.
- catenary /
- pantograph /
- dynamic performance /
- time integration method

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参考文献(1)

WU T X,BRENNAN M J.Dynamic stiffness of a railway overhead wire system and its effect on pantograph catenary system dynamics[J].Journal of Sound and Vibration,1999,219(3):483-502.[2] ARNOLD M,SIMEON B.Pantograph and catenary dynamics:a benchmark problem and its numerical solution[J].Applied Numerical Mathematics,2000,34(4):345-362.[3] LOPEZ-GARCIA O,CARNICEROA A,TORRESB V.Computation of the initial equilibrium of railway overheads based on the catenary equation[J].Engineering Structures,2006,28(10):1387-1394.[4] METRIKINE A V,BOSCH A L.Dynamic response of a two-level catenary to a moving load[J].Journal of Sound and Vibration,2006,292(3-5):676-693.[5] SHAN Q,ZHAI W M.A macroelement method for catenary mode analysis[J].Computers and Structures,1998,69(6):767-772.[6] PARKA T J,HANB C S,JANGC J H.Dynamic sensitivity analysis for the pantograph of a high-speed rail vehicle[J].Journal of Sound and Vibration,2003,266(2):235-260.[7] 张卫华.准高速接触网动态性能的研究[J].西南交通大学学报,1997,32(2):187-192.ZHANG Weihua.On dynamic behavior of the quasi-high-speed catenary[J].Journal of Southwest Jiaotong University,1997,32(2):187-192.[8] 刘怡,张卫华,梅桂明.受电弓/接触网垂向耦合运动中接触网动应力研究[J].铁道学报,2003,25(4):23-26.LIU Yi,ZHANG Weihua,MEI Guiming.Study of dynamic stress of the catenary in the pantograph/catenary vertical coupling movement[J].Journal of the China Railway Society,2003,25(4):23-26.[9] 梅桂明,张卫华.受电弓/接触网系统动力学模型及特性[J].交通运输工程学报,2002,2(1):20-25.MEI Guiming,ZHANG Weihua.Dynamics model and behavior of pantograph/catenary system[J].Journal of Traffic and Transportation Engineering,2002,2(1):20-25.[10] ZHANG Weihua,LIU Yi,MEI Guiming.Evaluation of the coupled dynamical response of a pantograph-catenary system:contact force and stresses[J].Vehicle System Dynamics,2006,44(8):645-658.[11] NEWMARK N M.A method of computation for structural dynamics[J].Journal of Engineering Mechanics,1959,85(2):67-94.

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文章访问数: 1630
HTML全文浏览量: 66
PDF下载量: 61
被引次数: 0