VIBRATION ANALYSIS ON HIGH-SPEED MAGLEV GUIDEWAY UNDER MOVING TRAIN LOADS

High-speed maglev train is one of the important transportation equipments of the urban rail transit toward the future because of its safety and environment convenience. The response of the guideway induced by moving maglev train is investigated in this paper. The dynamic model of the maglev train-guideway system is established. The dynamic responses of the train and guideway are generated in time domain using computer simulation techniques. The whole histories of the train passing through the guideway are simulated to obtain the dynamic response of the train vehicle and guideway. The results show that there is no resonant train speed associated with a peak mid-span displacement of the guideway. The train responses increase significantly with the train velocity nu>300 km/h.