Prediction of Ground-Borne Vibration Generated at Railway Crossings Using a Hybrid Model

Railway crossings are an important source of localized ground vibration. Models required for identifying ways to tackle unacceptable levels vibration from existing as well future railway lines. Yet, the use a prediction model that directly allows non-Hertzian wheel-rail contact dynamics and also includes three dimensional calculations response would be computationally expensive. In order reduce computational cost without affecting accuracy predictions, hybrid approach is proposed ground-borne due impacts at crossings. The combines simulation vertical force in time domain far field using linear wavenumber-frequency-domain approach. used investigate influence different vehicle speeds, crossing designs wheel profiles on predicted free field.