Ride quality of articulated high speed train

Based on the objectoriented modelling technique and SIMULINK graphic modelling language, the vertical and lateral dynamic behaviors of single vehicle,three connected vehicles and three articulated vehicles were researched with the frequency and time domain methods.The simulation results show that intervehicle suspension affects the vehicle ride quality greatly. Intervehicle suspension with proper parameters can attenuate the yaw and pitch vibration significantly. Comparison researches show the articulated form is better than the simple intervehicle suspension configuration, not only to the middle car but also to the end cars in the train set. The ride quality experiments of the articulated vehicles on vibration test rig demonstrate that the articulated train can achieve excellent ride quality at 350 km/h.10 figs, 18 refs.