Abstract Railway wheels in service experience rolling contact fatigue loading, but also need to resist frictional heating on braking, yielding temperatures up 500 °C. The combination of mechanical and thermal loads leads changes the properties material. focus this study is investigate effect annealing local microstructure residual stresses railway wheel pearlitic steel (medium carbon steels, ~0...

Abstract Dynamic wheel–rail contact forces induced by a severe form of wheel tread damage have been measured impact load detector during full-scale field tests at different vehicle speeds. Based on laser scanning, the three-dimensional geometry is employed in simulations dynamic vehicle–track interaction to calibrate and verify simulation model. The relation between magnitude various operationa...

Restructuring of European railway companies has resulted in creating new subjects within railway systems infrastructure managers (IM) on the one hand and railway operators (RO) on the other. In this paper we examine the efficiency and rank different business strategies of railway infrastructure managers using the combined AHP/DEA method. Different strategies include different number of paths al...

The “Next Generation Train” (NGT) is a double-deck high speed train concept in light-weight design that has been established as technical and project framework which the German Aerospace Center gathers its long-term railway vehicle research. To reduce wheel rail wear to enhance passenger capacity, mechatronic running gear with independently rotating wheels (IRW) key component under This require...