Search for dissertations about: "dynamic vehicle–track interaction"
Showing result 1 - 5 of 11 swedish dissertations containing the words dynamic vehicle–track interaction.
-
1. Slab track optimisation considering dynamic train–track interaction
Abstract : Slab track is a type of railway track that is frequently used e.g. in high-speed applications as an alternative to ballasted track. Slab track is also well suited on bridges and in tunnels since no ballast is required and the cross-section of tunnels can be reduced. READ MORE
-
2. Simulation of vertical dynamic interaction between railway vehicle and slab track
Abstract : The usage of slab track for high-speed railway lines has increased in recent decades. In Sweden, the building of new railway lines for higher speed and the selection of track design for such lines are currently being debated. READ MORE
-
3. Rail Corrugation Growth on Curves
Abstract : Short-pitch rail corrugation that may develop on the low (inner) rail on small radius curves causes increased noise and vibration levels on railway networks worldwide. In lack of a generally applicable treatment, track authorities are forced to run expensive rail grinding programs on a regular basis to manage these problems. READ MORE
-
4. Squat defects and rolling contact fatigue clusters - Numerical investigations of rail and wheel deterioration mechanisms
Abstract : Squat defects, a type of localised rolling contact fatigue damage appearing on rail surfaces with rail break as an ultimate consequence, have concerned infrastructure managers for the last couple of decades. In recent years similar types of defects—so-called studs—that are visually resembling squats, have started to appear. READ MORE
-
5. Towards Optimization of Railway Turnouts
Abstract : The turnout (Switch & Crossing) is a vital component in railway networks as it provides flexibility to traffic operation by allowing trains to switch between tracks. The flexibility comes at a cost as the common lack of a transition curve in the diverging route together with the variation and discontinuities in rail profiles result in higher rail degradation rates than in regular track. READ MORE