EFFECT OF INTERFERENCE FIT BETWEEN WHEEL HUB AND AXLE SEAT OF A RAIL VEHICLE ON STRESSES IN A TRANSITION ZONE

• Main Authors: Paweł ROMANOWICZ, Henryk SANECKI
• Format: Article
• Language: English
• Published: Silesian University of Technology 2014-03-01
• Series: Scientific Journal of Silesian University of Technology. Series Transport
• Subjects: a threat occurs not only because of the loss of capacity of the axle; railway axles; interference fit; stress concentration; FEM
• Online Access: http://www.polsl.pl/Wydzialy/RT/ZN_T/pelne_teksty/z82/213_ZN82_2014_RomanowiczSanecki.pdf

The main goal of the study is investigation of the effect of an interference fit between the wheel hub and the axle of a rail vehicle as well as some axle dimensions on the state of stress in the transition zone in vicinity of the connection: hub wheel - axle journal. An important role in behaviour of the fatigue notch occurring there plays the interference fit. The influence on the quantitative effects of the stress-strain state is to be considered. In order to investigate this phenomenon the finite element method with use of the three-dimensional elements and the contact was applied. The problem is important because of the increasing speed of modern passenger vehicles. Additionally, a threat occurs not only because of the loss of capacity of the axle, but also because of the possibility of slip between the wheel and the axle journal.