Assessment of a rail vehicle running with the damaged wheel on a ride comfort for passengers

¹ Department of Transport and Handling Machines, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic
² Railway Transport Department, Faculty of Transport Engineering, Vilnius Gediminas Technical University, J. Basanavičiaus g. 28, LT-03224 Vilnius, Lithuania
³ Department of Machines and Mechanics, Faculty of Production Technology and Management, Jan Evangelista Purkyně University, Railway Transport Department, Faculty of Transport Engineering, Vilnius Gediminas Technical University, Na Okraji 1001/7, 400 01 Ústí nad Labem, Czech Republic

^* Corresponding author: jan.dizo@fstroj.uniza.sk

Abstract

In certain conditions rail vehicles wheels can be during operation damaged. Then, the profile of wheels is no longer circular, but it is changed depending on the type and severity of defects. When such rail vehicle with the damaged wheel operates, the quality of a ride comfort for passenger is degraded. This article is focused on the assessment of ride comfort for passenger based on results obtained from dynamic analyses. Simulations and calculations were carried out in commercial multibody software. In our research we considered one type of the railway wheel untrueness – wheel-flat. This type of wheel damaging is relatively common and has such influence on the ride comfort for passenger worsening, which needs to be detected and investigated.