With the development of railway operations,the increasing axle loads of freight vehicles have led to severe rail wear.This study employed the UM dynamics software to establish a three-dimensional model of rail wear for freight railways.Calculations were conducted for rail wear under specific track conditions along a private siding of Hongliulin-Shemmuxi Railway.The results reveal that:(1)Wear on the inner and outer rails along straight sections is comparably minor,with little difference observed between them.(2)In transition curves,wear on the inner rail is predominantly concentrated within a distance of approximately 10 mm from the running surface near the rail edge under wheel-rail interaction,whereas outer rail wear is mainly distributed along 80 mm radius arc section on the inner side of the rail.(3)For outer rails in circular curves,wear is severe,primarily occurring on the inner-side arc sections with a radius of 80 mm,with noticeable wear also present on arc sections of 300 mm radius.(4)Inner rail wear is primarily focused on arc sections with 300 mm radius at the rail head,while wear on 80 mm radius arc sections is relatively light.
rail wearthree-dimensional model of rail wearouter rail wearinner rail wear
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