Coupler Force and Operation Optimization of 10,000-Ton Combined Train on Shenmu-Shuozhou Railway
Shenmu-Shuozhou Railway has a large number of long,steep and undulating ramps.When running newly marshalling trains,it is necessary to fully understand the longitudinal dynamic characteristics of the train,so as to provide theoretical basis and data support for formulating and optimizing operation methods and ensuring running safety.The simulation method based on air flow theory and multi-body dynamics is used to reproduce the real train operation conditions according to the data recorded by test train operation monitoring.The characteristics of coupler force and the causes of large coupler force during train operation are analyzed.The operation optimization method of the train passing through the convex slope is studied.The results show that the maximum tensile coupler force and the maximum compression coupler force are generated near the slave locomotive,and the maximum tensile coupler force is greater than the maximum compression coupler force.The maximum tensile coupler force of the train is generated under the combined action of convex slope and locomotive traction.When the train passes through the convex slope,the kinetic energy slope method can effectively reduce the maximum tensile coupler force of the train.
heavy haul trainsimulation analysiscoupler forceoperation optimization
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NSTL
万方数据
