受电弓混合建模与弓网耦合振动分析  

Experimental modeling of pantograph and coupled vibration analysis of pantograph

作　　者：周群 杨俭[1] 宋瑞刚[1] 袁天辰[1] ZHOU Qun;YANG Jian;SONG Rui-gang;YUAN Tian-chen(School of Urban Railway Transportation,Shanghai University of Engineering Science,Shanghai 201620)

机构地区：[1]上海工程技术大学城市轨道交通学院,上海201620

出　　处：《计算机仿真》2021年第1期144-149,共6页Computer Simulation

基　　金：国家自然科学基金高铁联合基金(U1834201)。

摘　　要：接触网、受电弓、列车行驶工况复杂多变,弓网耦合方程建立不全面,基于受电弓参数的弓网耦合振动分析有待进一步研究。将弓头柔性的理论建模建模与传统受电弓线性模型的实验建模结合,并将气动抬升力和车体振动模拟进弓网的非线性耦合模型。利用Newmark-β法求解响应后,基于受流质量性能判断指标,分析受电弓参数以及改进前后的弓网耦合模型在列车不同行驶速度下对弓网接触力的影响。结果表明:列车低速行驶时,模型改进前后的接触力仿真结果差异很小;列车高速行驶时,两者差异增大,非线性不容忽视。此外,仿真得出M_(1),M_(2),K_(2),C_(1)是影响接触网系统与受电弓系统合理匹配的关键参数。Catenary,pantograph and train running conditions are complex and changeable,and the establishment of pantograph coupling equation is not comprehensive.The pantograph coupled vibration analysis based on pantograph parameters needs to be further studied.In this paper,the flexibility of the bow head was taken into account in the pantograph modeling,and the nonlinear coupling model of aerodynamic lift and vehicle vibration was simulated into the pantograph network.After the response was solved using Newmark-method,the influences of pantograph parameters and the coupling model of pantograph before and after the improvement on the contact force of pantograph at different speeds were analyzed based on the judgment index of the quality performance of the affected flow.The results show that the simulation results of contact force before and after the model improvement have little difference when the train is running at low speed.When the train runs at high speed,the difference between the two increases and the non-linearity cannot be ignored.In addition,M_(1),M_(2),K_(2) and C_(1) are the key parameters affecting the reasonable matching between catenary system and pantograph system.

关 键 词：弓网耦合 非线性 振动分析 受电弓 

分 类 号：U221[交通运输工程—道路与铁道工程]