The paper presents a model of a two-axle wagon in which a flat spot was modeled on the rim of one of the wheelsets. The dynamic interaction of this wheelset with the rail was investigated as a function of the damage size, wagon speed, and its mass for two cases of track stiffness. The simulation was performed in the UM LOCO environment. Based on the analysis of the studies, full convergence with experimental tests on the railway track was confirmed.PKP began to take an interest in the problems of research and diagnostics of wheels with flat spots in the late 1970s, when there was a successive increase in track load by vehicles with a higher permissible mass.
The result of these studies were the first prototypes of measuring devices using the phenomenon of loss of wheel-to-rail contact, built at the Radom university [1]. (…)
The article contains 12638 characters.
Source: Logistyka Magazine