Investigation of wear of wheels and rails when the center of mass of cargo in gondola cars shifts
Keywords:
Shift of the cargo, Railway, Gondola cars, Wear factor, Mathematical modelingAbstract
At higher train speeds, the dynamic characteristics of the wagon are negatively affected by the uneven distribution of the mass of the body with the cargo over the springs, caused by asymmetric loading. It is well known that the safety of train traffic and the safety of transported goods depend on the method of placement and securing of goods. Determining the displacement of the center of mass of the cargo relative to the axes of symmetry of the railway car allows you to timely identify dangerous deviations in its stability and thereby significantly increase safety during the movement of the train. For stability and transportation safety, the center of mass must be at the intersection of the central longitudinal and transverse axes. A slight shift in the center of mass is possible if you need to transport non-standard cargo. Sometimes, when transporting several goods, there is a need for their asymmetrical arrangement in the wagon. Displacement of cargo relative to the center of mass of the wagon is possible during transportation. Therefore, there is a need to evaluate the effect of loading asymmetry on the dynamic characteristics of the wagon and to establish the allowable values of cargo displacement.
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