Research of Dynamic Processes of the System “Track – Vehicle”, When Wheel Is with 0.7 mm Metal Scale

Abstract

The appearance of a metal scale on the wheel’s surface causes technical and maintenances problems for the rolling stock. Railway standards limit the speed of movement that depends on a certain size of metal scale.

Introduced in this article, the results obtained after researching the system “Vehicle – Track”, when the wheel has a metal scale, help to better understand and evaluate the impact of metal scale on wheel on dynamic loads of rail and vehicle and the regularities of their movement.

When analysing the interaction between vehicle wheel with a metal scale and rail in the system “Vehicle – Track”, the changes of the kinematic and dynamic parameters of the wheel and rail contact points in time are examined, depending on the height of the 0.7 mm metal scale, when the length of the metal scale is 100 mm and the speed of movement is different.