摘要
建立了朔黄铁路3万吨C80重载列车纵向动力学模型、机车和车辆动力学模型及轨道结构有限元模型,分析了重载列车通过小半径曲线段时最大车钩力分布、车辆运行安全性以及轨道结构横向稳定性。结果表明:3万吨重载列车最大压钩力一般大于拉钩力,压钩力最大值主要出现于第二个万吨编组的前部和第三个万吨编组的中部;3万吨重载列车作用下压钩力、拉钩力、轮轴横向力、轨排横向位移的最大值分别为1205.00、1062.10、83.88 kN和1.22 mm,均小于安全限值,满足列车运行安全和轨道结构横向稳定性要求;通信故障情况下脱轨系数、轮重减载率、轮轴横向力和轨排横向位移均大于正常通信情况下,且其最大值均出现于半径400 m曲线段。
The longitudinal dynamics model,locomotive and vehicle dynamics model and track structure finite element model of the 30000 t C80 heavy haul train on the Shuozhou-Huanghua port railway were established.The maximum coupler force distribution,vehicle operation safety and track structure lateral stability were analyzed when the heavy haul train passes through the small radius curve section.The results show that the maximum compression coupler force of the 30000 t heavy haul train is generally greater than the tensile coupler force,and the maximum compression coupler force mainly occurs in the front of the second 10000 t marshalling and the middle of the third 10000 t marshalling.The maximum values of compression coupler force,tensile coupler force,wheel axle lateral force and rail panel lateral displacement under the action of 30000 t heavy haul train are respectively 1205.00,1062.10,83.88 kN and 1.22 mm,which are less than the safety limit and can meet the requirements of train operation safety and track structure lateral stability.In case of communication failure,the derailment coefficient,wheel load reduction rate,wheel axle lateral force and rail panel lateral displacement are greater than those under normal communication conditions,and their maximum values appear in the curve section with a radius of 400 m.
作者
肖致明
XIAO Zhiming(Guoneng Shuohuang Railway Development Co.Ltd.,Suning Hebei 062350,China)
出处
《铁道建筑》
北大核心
2023年第3期10-14,共5页
Railway Engineering
基金
国家能源投资集团有限责任公司科技创新项目(GJNY-20-232)。
关键词
重载铁路
稳定性
仿真分析
3万吨重载列车
轨道结构
车钩力
轮轴横向力
轨排横向位移
heavy haul railway
stability
simulation analysis
30000 t heavy haul train
track structure
coupler force
wheel axle lateral force
lateral displacement of rail panel
