The Importance of a Detailed Vehicle Modelling in the Numerical Prediction of Railway Ground Vibrations

摘要: With the development of continuous technological innovation, railway transport is presented as an interesting alternative to road traffic. Some drawbacks exist, one most problematic being certainly vibrations induced by The research wants establish a reliable methodology in order evaluate, from design stage vehicle or track, efforts transmitted track/soil system and consequently level surroundings. An analysis interaction between track soil has been performed show when uncoupling can be assumed, with aim working two stages. first step based on vertical dynamic behaviour vehicle/track subsystem, taking into account any irregularity rail surface. For subsystem (second step), recent publications showed that finite/infinite element method boundary method. objective this paper demonstrate real benefit modelling kind problem. Typical applications (Brussels tram, Thalys HST) are proposed, showing among others significant reduction ground vibration obtained modifying characteristics vehicle.