铁路货车侧向通过道岔运行稳定性研究  

Stability of Railway Freight Cars Running Through Turnout in the Side Direction

作　　者：何冀东[1] 刘作义[1] 朱润 

机构地区：[1]北京交通大学交通运输学院,北京100044

出　　处：《交通信息与安全》2012年第5期90-93,共4页Journal of Transport Information and Safety

摘　　要：分别以脱轨系数、轮重减载率及轮轴横向力作为判定标准,进行我国通用型货车在不同重车重心高度及横向偏移装载条件下侧向通过12号提速道岔时的运行稳定性试验研究。研究结果表明:货物重心的横向偏移会使得车辆的运行稳定性指标,尤其是脱轨系数和轮重减载率明显增大,车辆的脱轨危险性大幅增加;侧逆向和侧顺向通过道岔时,车辆运行稳定性差别较大,侧逆向相对更加不利;提速货车在重车重心高度为2 400mm、货物重心横向偏移量为150mm、前后两转向架负重差为10t的最不利装载工况下,侧向通过12号提速道岔时不需限速运行。With the derailment quotient, rate of wheel load reduction and lateral force of wheel axle as the safety as- sessment standard, the stability of the vehicles is studied in different conditions of the height of the loaded cargo vehicle＇s center of gravity and lateral shift when running through the 12# turnout in the side direction. The results show that the indexes of vehicles running through the 12# turnout in the side direction, especially the derailment quotient and the wheel load reduction rate, will increase obviously, and the risk of derailment will also rise. The stabilities of the vehicles vary greatly when running side along and side reverse through the 12# turnout in the side direction. The latter is more danger. It can be proved to be correct that it is unnecessary to limit the vehicles＇ speed when running through the 12# turnout in the side direction under the most adverse condition.

关 键 词：重车重心高 铁路货车 道岔 运行稳定性 脱轨 铁路货运 

分 类 号：U29-3[交通运输工程—交通运输规划与管理]