摘要
基于非线性有限元理论,建立了京津城际高速铁路弓网动态系统的有限元模型,采用欧拉-伯努利直梁模拟接触网各部件,采用铰链和非线性弹簧相互耦合模拟受电弓,借助MARC软件,对京津城际高速铁路弓网受流情况进行了动态仿真,并利用MARC的后处理功能显示弓网运动过程中的三维动态情况。计算得到了京津城际弓网动态系统的平均接触压力为160.68N,接触点动态抬升量变化范围为28.5～87.0mm。与西门子公司提供的仿真结果及京津城际现场的测试结果比较表明:有限元模型是正确和有效的,京津城际弓网动态系统具有良好的动态受流质量。
Based on the nonlinear finite element theory（FEM）, a finite element model of the pantograph-catenary dynamic system of Beijing-Tianjin intercity high-speed railway was established, in which nonlinear flexible catenary was modelled by using Euler-Bernoulli flexible beam and the pantograph was modelled by using hinge and nonlinear springs. The dynamic current-collecting performance of the system was simulated by using MARC software, and using whose post-processing function, the three dimensional dynamic performance of pantographcatenary was shown. Computation result shows that the average pantograph-catenary contact pressure is 160.68 N and the dynamic uplift of contact position is between 28.5 mm and 87.0 mm. Compared with the simulation result provided by Siemens and the measure result, the model is correct and credible, the dynamic current-collecting performance is perfect. 3 tabs, 7 figs, 9 refs.
出处
《交通运输工程学报》
EI
CSCD
北大核心
2009年第1期25-28,共4页
Journal of Traffic and Transportation Engineering
基金
国家自然科学基金项目(60674005)
铁道部重点项目(E06D0020)
北京交通大学校基金项目(EJ07001)
关键词
京津城际高速铁路
弓网系统
动态受流性能
有限元仿真
Beijing-Tianjin intercity high-speed railway
pantograph-catenary system
dynamic current-collecting performance
finite element simulation
