Insulated Rail Joints
Stiffness Optimisation of Insulated Rail Joints
Increased static and dynamic forces due to local stiffness differences lead to ballast deterioration, hanging ties, end post battering as well as metal flow at the rail ends, which can lead to short circuit and subsequently to track closure and increased maintenance requirements.
In order to optimise the bedding of Insulated Rail Joints, Getzner has developed a tailor made finite element method (FEM) model. By using the IRJ know-how gained in recent years, elastic elements, like Under Sleeper Pads or Rail Pads, can be adjusted precisely to given superstructure conditions. As a result, the track quality is permanently increased. Track measurements in North American heavy haul environment confirm the positive effects of this optimisation.
Advantages for the customer
- Tailored bedding for Insulated Rail Joints
- Homogenous rail deflection
- Decimated dynamic forces
- Minimised ballast pressure (> 80%)
- Less ballast deterioration
- Reduced maintenance costs
- Less system failures (short circuits, signal errors)
- Extended life span of Insulated Rail Joints
- Economic track operation