Indicators of the force interaction of the track and rolling stock when a freight car runs on long irregularities, taking into account the action of longitudinal forces
https://doi.org/10.21780/2223-9731-2021-80-6-359-365
Abstract
Authors describe formation mechanism of long irregularities of the railway track and the importance of their elimination for the track facilities. Based on the results of freight train operation modeling on long irregularities in the traction mode, an analysis of the processes occurring during the motion of heavy trains along a track with such deviations was carried out, modeling was carried out on the basis of the “Universal Mechanism” software package. Based on the results of the calculation, interaction between the track and the rolling stock in the vertical plane was assessed in terms of the magnitude of the vertical force and coeffcients: dynamics, stability margin, Nadal, unloading (in percent) of axle springs of freight car springs. Article analizes the nature of the infuence of the irregularity slope on the decrease in the vertical force transmitted from the wheel to the rail and the change in the traction force on the dynamics of freight cars in the train and passing on long irregularities of the longitudinal profle through the indicators of the vertical force.
About the Authors
E. A. Sidorova
Joint Stock Company Railway Research Institute (JSC “VNIIZHT”)
Russian Federation
Russian Federation
Elena A. Sidorova, Cand. Sci. (Eng.), Senior Researcher, Scientifc Center “Track infrastructure and issues of wheel—rail interaction”
Moscow, 129626
V. O. Pevzner
Joint Stock Company Railway Research Institute (JSC “VNIIZHT”)
Russian Federation
Russian Federation
Viktor O. Pevzner, Dr. Sci. (Eng.), Professor, Chief Researcher, Scientifc Center “Track infrastructure and issues of wheel—rail interaction”
Moscow, 129626
A. I. Chechel’nitskiy
Directorate for diagnostics and monitoring of infrastructure of the Central Directorate of Infrastructure — Branch of JSC Russian Railways
Russian Federation
Russian Federation
Aleksander I. Chechel’nitskiy, Deputy Head of the Directorate for diagnostics and monitoring
Moscow, 107174
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For citations:
Sidorova E.A., Pevzner V.O., Chechel’nitskiy A.I. Indicators of the force interaction of the track and rolling stock when a freight car runs on long irregularities, taking into account the action of longitudinal forces. RUSSIAN RAILWAY SCIENCE JOURNAL. 2021;80(6):359-365. (In Russ.) https://doi.org/10.21780/2223-9731-2021-80-6-359-365
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