西南交通大学学报2025，Vol.60Issue(2)：418-424,7.DOI:10.3969/j.issn.0258-2724.20220873
地铁弓网系统摩擦自激振动研究
Frictional Self-Excited Vibration of a Metro Pantograph-Catenary System
摘要
Abstract
In order to study the influence of frictional self-excited vibration of a pantograph-catenary system on the contact loss between the carbon strip and contact wire,a finite element model of the pantograph-catenary system at the rigid and flexible transition section of a metro was established based on the theory of frictional self-excited vibration.The complex eigenvalue analysis method was used to study the influence of different pantograph-catenary parameters on the frictional self-excited vibration of the system.The analysis results show that the main frequency of contact line corrugation caused by frictional self-excited vibration of the pantograph-catenary system is 399.61 Hz.When the friction coefficient is greater than or equal to 0.11,the pantograph-catenary system has unstable vibration,and with the increase in the friction coefficient,the unstable vibration tends to be stronger.The normal contact force,the contact position between the carbon strip and the contact wire,and the stiffness of the pantograph bow spring have great influences on the occurrence of the frictional self-excited vibration of the pantograph-catenary system.When the friction coefficient is less than 0.11,selecting the appropriate normal contact force or adjusting the stiffness of the pantograph bow spring can restrain or even eliminate the frictional self-excited vibration of the pantograph-catenary system and then reduce the contact loss caused by the friction between the pantograph and catenary.关键词
弓网系统/刚柔过渡/摩擦自激振动/复特征值分析/数值仿真Key words
pantograph-catenary system/rigid and flexible transition/frictional self-excited vibration/complex eigenvalue analysis/numerical simulation分类
数理科学引用本文复制引用
冯晓航,陈光雄,梅桂明,董丙杰,赵鹏鹏,李先航..地铁弓网系统摩擦自激振动研究[J].西南交通大学学报,2025,60(2):418-424,7.基金项目
国家自然科学基金项目(52175189) （52175189）
