DYNAMIC LOADS IN THE DRIVE SYSTEM OF RAILWAY TRACTION VEHICLES DUE TO TRACK UNEVENNESSES

Abstract

Railway traction vehicIes moving along tracks go through excited vertical and pitching vibrations due to the vertical unevennesses in the permanent way. These vibrations give rise to axle-load variations, and dynamic loads in each element of the drive system are created by the variations in the creep- and axle-load-dependent tractive effort transmitted through wheel-rail connections. The dynamic loads can be correctly described by the examination of an integrated "track - vehicle - drive-system" model. This paper deals with the dynamic analysis of the load-processes developing ill the drive system. The analysis is based upon the results of digital simulation.