刚性悬挂接触网结构参数对地铁弓网系统受流特性影响仿真分析  

Simulation Analysis of Rigid Suspension Catenary Structure Parameters Influencing Metro Pantograph-catenary System Current Collection Characteristics

作　　者：杨艺 YANG Yi(State Key Laboratory of Rail Transit Engineering Informatization(FSDI),710043,Xi’an,China)

机构地区：[1]轨道交通工程信息化国家重点实验室(中铁一院),西安710043

出　　处：《城市轨道交通研究》2023年第5期237-242,共6页Urban Mass Transit

基　　金：中铁第一勘察设计院集团有限公司科研开发项目(院科20-14)。

摘　　要：为了对刚性悬挂接触网系统结构参数优化设计提供技术论证,优化地铁刚性接触网设计,研究了刚性悬挂接触网结构参数对地铁弓网系统受流特性的影响。基于有限单元法,建立了接触网有限元等效梁结构模型及简化为弹簧阻尼机构的受电弓归算模型。通过受电弓和接触网动态运行的仿真计算,分析研究了刚性接触网跨距参数、悬挂机构刚度参数及锚段关节处的结构参数对弓网系统受流的影响。仿真研究表明:当列车运行速度小于80 km/h时,建议采用的接触网跨距为10 m;当列车运行速度为120~160 km/h时,建议采用的接触网跨距为8 m;接触网悬挂刚度过小会恶化弓网之间的受流质量;通过减小锚段关节处相邻跨距之间的挠度差,可以有效提高弓网系统在锚段关节处的受流质量。To provide technical demonstration for the optimization design of rigid suspension catenary structure parameters,guide and optimize the metro rigid catenary design,the influence of rigid suspension catenary structure parameters on metro pantograph-catenary system current collection characteristics is studied.Based on finite element method,the catenary finite element equivalent beam structure model and the pantograph regression model simplified as spring damping mechanism are established.Through simulation calculation of the pantograph and catenary dynamic operation,the influence of rigid catenary span parameter,suspension mechanism stiffness parameter and overlapping section joint structure parameter on pantograph-catenary current collection is discussed.Simulation research shows that when train operating speed is less than 80 km/h,the recommended catenary span is 10 m;when the speed is 120-160 km/h,the recommended catenary span is 8 m;when the catenary suspension stiffness is too small,the current collection quality of pantograph and catenary will deteriorate considerably.The current collection quality of pantograph-catenary system at the overlapping section joint can be effectively improved by reducing the deflection difference between adjacent spans at the joint.

关 键 词：地铁 刚性悬挂接触网 弓网系统 受流特性 

分 类 号：U225[交通运输工程—道路与铁道工程] TM922.61[电气工程—电力电子与电力传动]