基于有限元和空气动力学模型的高速受电弓动态性能仿真  

Simulation of High-Speed Pantograph Dynamic Performance Based on Finite Element Model and Aerodynamic Pantograph Model

作　　者：吴燕[1] 吴俊勇[1] 郑积浩[1] 

机构地区：[1]北京交通大学电气学院,北京100044

出　　处：《西南交通大学学报》2009年第6期855-859,共5页Journal of Southwest Jiaotong University

基　　金：国家自然科学基金资助项目(60674005);铁道部重点基金资助项目(E06D0020);北京交通大学校基金资助项目(EJ07001)

摘　　要：建立了接触网和受电弓子系统的有限元模型和空气动力学模型,采用MSC-Marc及STAR-CD软件,研究受电弓动态受流性能和空气动力学性能.通过接触实现2个子系统耦合,对弓网进行动态仿真;通过高速受电弓三维模型,对受电弓高速空气动力学性能进行仿真.仿真结果表明:简单链型悬挂比弹性链型悬挂接触线动态抬升量和平均接触压力均小,在速度250 km/h时,气流对受电弓产生的抬升力约为12 N,空气阻力为550 N.A coupled finite element model for the pantograph-catenary system and an aerodynamic pantograph model were built. Based on the models, the dynamic current collection and aerodynamic performances of the pantograph were studied using MSC-Marc and STAR-CD simulation software. In the finite element model, the pantograph and catenary subsystems are integrated into a whole system through contact coupling between them, to simulate the dynamic behavior of the pantograph-catenary system. Then, the aerodynamic performance of the high-speed pantograph was simulated on the three- dimensional aerodynamic pantograph model. The simulation results show that the dynamic uplift and average contact force of simple suspension are smaller than those of stitched suspension. When the train speed reaches 250 kin/h, the additional uplift force caused by the high speed air flow on pantograph is about 12 N and the drag force is about 550 N.

关 键 词：弓网受流 受电弓 有限元模型 空气动力学性能 

分 类 号：U255.1[交通运输工程—道路与铁道工程]