4万吨列车拨车机牵引载荷仿真计算

Simulation of Indexer Traction Load of 40 000 Ton Train

根据澳大利亚4万吨列车拨车机项目的要求,利用拨车机动态载荷仿真系统计算了拨车机牵引4万吨列车的拨车载荷,分析了车钩间隙和速度曲线对拨车载荷的影响,在此基础上对4万吨列车速度曲线进行了分段优化.结果表明:4万吨列车在原始速度曲线下的最大拨车载荷为1 679 k N;车钩间隙小于40 mm时,增大车钩间隙能有效减小最大拨车力,而当车钩间隙大于40 mm时,增大车钩间隙减小最大拨车力的效果降低;所提出的五段优化速度曲线,将拨车效率提高了31.7%.

According to the project of Australia 40 000 tons train indexer,the impact of coupler slack and speed curve on the traction load was analyzed. Based on the indexer dynamic load simulation system,the subsection optimization to the speed curve of 40 000 tons train was conducted. The results show that the indexer maximum load is 1 679 k N under the initial design speed condition. Increasing the coupler slack can effectively reduce the maximum traction load when the coupler slack is less than 40 mm. When the coupler slack is more than 40 mm,the effect of coupler slack reduces. The dumping efficiency is increased by 31. 7% by the optimization speed curve.