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Determination of the resistance to motion of a cargo train when driving without a drive

Sawczuk Wojciech, Kołodziejski Sławomir, Rilo Cañás Armando Miguel

Combustion Engines

2024

R. 63, nr 2

64--70

The issue related to the motion resistance of a rail vehicle is very important for energy, environmental, and related energy consumption of the vehicle as well as vehicle performance with dynamic points. The latter aspect applies in particular to traction vehicles. The article presents several models of resistance to the movement of a freight train used by various railway authorities, for Polish and foreign rolling stock. The resistance values obtained from the models were verified against the tested freight train carrying aggregate. On the basis of the records from the locomotive recorder, linear models of speed changes over time and coasting paths (without drive) were determined. On the basis of the values obtained from the models of resistance to movement of a freight train, the paths of coasting to stop the train were determined on the basis of the UIC 544-1 card, which were related to the analyzed freight train.