基于弓网动力仿真的160km/h刚柔过渡系统方案研究

Research of 160km/h Transition Structure Proposal between Overhead Conductor Railand Contact Line Based on Dynamic Simulation

刚柔过渡结构属于接触网的结合部位,其结构相对复杂,是制约弓网动力性能的关键区域。随着城市轨道交通的发展,研制160km/h及以上速度的刚性接触网十分迫切。基于此,建立刚柔过渡弓网仿真模型,研究160km/h的受电弓与刚性接触网、刚柔过渡区段、柔性接触网的动力相互作用;设计了满足双弓160km/h的刚柔过渡系统方案,并考虑了刚性接触网不平顺对刚柔过渡系统方案的影响。具体建议方案为:受电弓选择DSA250型;刚性接触网跨距选择6m,定位点刚性悬挂;柔性接触网选择Re250型;采用贯通式刚柔过渡方式。

The transition structure between overhead conductor rail and contact line is the bonding part of the catenary.The transition structure is relatively complex and a key area that restricts the dynamic performance of pantograph and catenary system.With the development of urban rail transit,the research and development of conductor rail with 160 km/h or over is necessary.Based on the simulation model of transition structure,this paper focused on the dynamic interaction between pantograph and conductor rail,transition structure,and contact line.Finally,the transition structure scheme that meets the requirement of 160 km/h conductor rail structure with double pantographs was designed.The influence of conductor rail irregularity on transition design scheme was considered.Specific proposal includes the selection of Type DSA250 pantograph;6m span conductor rail and rigid suspension of the supporting points;Type Re250 contact line;continuous type of transition structure.