The study of dynamic loads in the traction drive of freight locomotive is conducted by the methods of field tests. The mathematical modeling of the dynamics of the traction drive with a limited set of realizations of perturbations from the railway, it is desirable to use for the study a qualitative picture of the occurrence of dynamic loads, to determine important factors of loading and comparison of dynamic properties of different designs of under-carriage options. The results of the study showed that the statistical characteristics of the loads in the drive components significantly vary depending on the length of the area of operation. The rational areas of simulation use and field experiments when creating new designs of traction drive are suggested.
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