4_2021_sen_6

Title of the article COMPUTER MODELING OF INTERACTION DYNAMICS OF THE RAILWAY CAR WHEELSET WITH BRAKING SHOES
Authors

SHIMANOVSKY Alexandr O., D. Sc. in Eng., Prof., Head of the Department “Technical Physics and Theoretical Mechanics”, Belarusian State University of Transport, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

KUZNIATSOVA Marina G., Ph. D. in Eng., Assoc. Prof., Associate Professor of the Department “Technical Physics and Theoretical Mechanics”, Belarusian State University of Transport, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

DZEMYANCHUK Volha U., Student of the Faculty “Management of Transportation Processes”, Belarusian State University of Transport, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section COMPUTER MECHANICS
Year 2021
Issue 4(57)
Pages 48–55
Type of article RAR
Index UDK 004.94:62-599
DOI https://doi.org/10.46864/1995-0470-2021-4-57-48-55
Abstract The paper considers the problem of keeping cars from rolling away on station railway tracks with a permissible slope of 0–2.5 ‰. The study presents the computer simulation results for the dynamic interaction of wheels with brake shoes installed on rails in the process of stopping a freight train car using standard brake shoes in the MSC.ADAMS engineering software package. In this case, various properties of the rail surface were taken into account, simulating favorable and unfavorable conditions for contact between the wheel, brake shoe and rail at braking due to both weather conditions and the peculiarities of station tracks location and operation. The interaction of the car wheels with the maximum axle load and the station brake shoes installed on the rails was studied at different initial velocities of the vehicle movement, as well as when it is at rest on tracks with the permissible slope under the conditions of ensuring the minimum friction between the wheel and the rail, as well as the interaction of rail and shoe was analyzed, which corresponds to the presence of the train on oily rails. It is demonstrated that it is not always possible for one brake shoe put on the oily rail to hold the train moving with the initial velocity more than 0.5 m/sec. Under other conditions of the wheel-brake shoe collision, the problem of keeping the train on the rails is also possible, due to such random factors as lateral wind load, rail icing, wear and deformation of the wheel surface and brake shoe, which reduce the dynamic friction coefficient between the contacting surfaces.
Keywords brake shoe, rail surface, computer simulation, wheelset, MSC.ADAMS
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