Reliability research for determining the parameters of the rolling-stock wheel rolling surface defects by automatic control equipment

Abstract

The paper deals with the contact between the wheelset of the wagon and the rail at the existence of wheel rolling surface (WRS) defects. Analysis is performed of the data, fixed by the ATLAS-LG subsystem of the Wheel Impact Load Detector (WILD), and comparison with actual measurements has been made. During field testing, dependence of the accuracy of WILD readings on the rolling-stock mass, movement speed and movement direction was established. Upon having conducted field tests of rolling-stock with wheel rolling surface defects, factors impacting the extent of the dynamic force on the rail as well as the reliability of WILD measurement data have been identified. Conclusions and proposals concerning the WILD data processing algorithm correction are provided.