Free field vibrations caused by high-speed lines: Measurement and time domain simulation

摘要: In recent years, the high-speed train (HST) network has developed considerably, unfortunately increasing vibration nuisances in its neighbourhood. This paper aims to present some measurements collected on a Belgian site located between Brussels and Paris/London travelled by Thalys Eurostar trains, compare them with results obtained recently model, involving compound vehicle/track/soil system. Assuming that soil can be reasonably decoupled from track, approach first considers train/track subsystem. The latter is studied combining multibody model of vehicle finite element both so far limited vertical motion. ground forces given this simulation are then applied finite/infinite subsystem, where infinite elements placed border mesh order properly represent an unbounded domain. Both simulations performed time domain, offering opportunity include non-linearities. good correspondence numerical experimental shows reliable for predicting produced vehicles. Finally, presents cases showing importance including complete layering model.