Preventive Measures for Rail Wear on Small Radius Curves of Jungar-Shenchi Railway
In order to prevent and control rail wear on small radius curves of the Jungar-Shenchi railway,this article first used UM software to establish a three vehicles marshalling C80 freight car model,used ANSYS software to establish a flexible track model,and jointly created a rail wear model based on the contact program.The section K177+050.438—K178+951.984 on the upstream line of Shenchi south super major bridge was selected,the rail wear under different superelevation,friction coefficient,and rail cant were calculated,and then a parameter improvement plan for the small radius curve line was proposed and verified.The results show that the calculated results of the rail wear model established in this article have a small difference from the measured results,and the model is reasonable.The superelevation,friction coefficient,and rail cant of the curved section all have an impact on the distribution and amplitude of rail wear,especially superelevation and rail cant.The track superelevation of the small radius curved section of the Jungar-Shenchi railway is set to 40 mm,the inner rail cant is set to 1/20,and the outer rail cant is set to 1/30,which can effectively alleviate the rail wear.
heavy haul railwayrail wearnumerical simulationsuperelevationrail cantfriction coefficient
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