Transition radiation in an infinite one-dimensional structure interacting with a moving oscillator—the Green's function method

Transition zones in railway tracks are areas with considerable variation of track properties (e.g., foundation stiffness) which may cause strong amplification of the response, leading to rapid degradation of the track geometry. Two possible indicators of degradation in the supporting structure are identified, namely the wheel-rail contact...

Modelling transition zones in railway tracks

Transition zones are locations of discontinuity in the support,<br/>such as stiffness transition zones in the ballasted track (close<br/>to bridges, culverts and tunnels). These zones necessitate<br/>special attention, mainly because they:<br/>- Require frequent and expensive maintenance activities.<br/>- Cause delays due to unexpected maintenance.

Green’s function method for analyzing the response of an infinite Euler-Bernoulli beam on inhomogeneous elastic foundation interacting with a moving oscillator

Interaction Between a Moving Oscillator and an Infinite Beam on Elastic Foundation with Transition Zone in Stiffness – Green’s Function Approach

Transition zones in railway lines are areas between different track structures such as the transition from conventional track (ballasted track) to slab track, to a tunnel or a viaduct. The main feature of a transition zone is that it exhibits a dramatic change in structural behaviour to bridge the difference in the adjacent track parts. This...