A5032291788- Railway Engineering and Dynamics
- Structural Health Monitoring Techniques
- Geotechnical Engineering and Underground Structures
- Railway Systems and Energy Efficiency
- Surface Roughness and Optical Measurements
- Gear and Bearing Dynamics Analysis
- Civil and Geotechnical Engineering Research
Swiss Federal Railways
2021-2023
The dynamic wheel-rail contact forces resulting from the interaction between vehicle and track are responsible for local settlement. If these settlements vary along track, geometric irregularities develop further amplifying loading of caused by track. In this work, an efficient vehicle-track (VTI) model is presented predicting long-term evolution vertical settlement during operation. VTI has two interacting components – describes dynamics 8th a car. considers elastic rail on discrete...
According to the International Union of Railways, railway networks count more than one million kilometers tracks worldwide, a number that is rise further as goal promote rail transportation sustainable means face challenge increased mobility. However, such vast expansion necessitates efficient and reliable infrastructure monitoring schemes able guarantee quality safety transportation. Traditional approaches, relying on visual inspection portable measuring devices, cannot task they do not...
Abstract Understanding the dynamics of interaction between railway vehicles and tracks is essential for forecasting vehicle track conditions performing maintenance actions to preserve safety infrastructure. In this work, physics-based models are deployed predict dynamic response alignment irregularities. Such comprise a large number parameters that need be validated possibly tuned, task often accomplished on basis expert knowledge or trial-and-error without necessarily reflecting condition...