考虑接触轨轨缝的靴轨系统动态特性研究  

Research on dynamic characteristics of shoegear-conductor rail system considering conductor rail joint gap

作　　者：喻文彬 YU Wenbin(The 4th Engineering Co.,Ltd.of China Railway Construction Electrification Bureau Group,Changsha,Hunan 410114,China)

机构地区：[1]中铁建电气化局集团第四工程有限公司,湖南长沙410114

出　　处：《机车电传动》2023年第2期136-141,共6页Electric Drive for Locomotives

基　　金：国家自然科学基金项目(52172408)。

摘　　要：在城市轨道交通中,列车供能除采用架空接触网系统外还常采用靴轨系统。在靴轨系统中,集电靴沿接触轨滑行,振动行为复杂,易受线路条件和结构本身的影响。当接触轨出现轨缝时,集电靴通过会产生较大冲击力,造成靴轨系统受流工况恶化。文章基于多体动力学和有限元理论,搭建靴轨耦合动力学模型,并与实测数据相对比,验证模型准确性。基于所搭建的模型,考虑在标准规定的最恶劣的接触轨轨缝条件,分析靴轨系统在不同速度和轨缝方向下的动态性能。结果表明,相对于前低后高轨缝的工况,集电靴通过前高后低轨缝时,车辆运行速度对靴轨系统受流质量的影响更加严重。In urban rail transit,in addition to overhead catenary system,the electric shoegear-conductor rail system is often used for energy supply of trains.In the shoegear-conductor rail system,the electric shoegear slides along the conductor rail,and the vibration behavior is complex and vulnerable to the influence of line conditions and the structure itself.When the conductor rail has rail joint gap,the shoegear passing through will generate large impact force,resulting in the deterioration of the current collection quality of the shoegearconductor rail system.Based on multi-body dynamics and finite element theory,this paper built a shoegear-conductor rail coupling dynamics model,and compared it with measured data to verify the accuracy of the model.Based on the model,the dynamic performance of the shoegear-conductor rail system at different speeds and with rail joint gaps in different directions was analyzed,considering the worst conductor rail joint gap conditions specified in the standard.The results show that when the shoegear passes through the front-high-rearlow rail joint gaps,the vehicle running speed has a more serious influence on the current collection quality of the shoegear-conductor rail system compared to the front-low-rear-high rail joint gaps.

关 键 词：城市轨道交通 集电靴-接触轨系统 轨缝 受流质量 多体动力学方法 

分 类 号：U231[交通运输工程—道路与铁道工程] U264.34[机械工程—车辆工程]