Dynamic Simulation of the Passenger Cars with Elastic Bogies

With the SIMPACK software, the dynamic model of the complete railway vehicle system is established in which the bogies are taken as elastic bodies with the FEM structure and mode and the other important parts such as the carbodies, axleboxes and wheelsets are treated as rigid ones. With time integration, the structural vibration of the bogies and the dynamic responses of the other parts of the car are achieved while the vehicles negotiate curve and run on straight track with stochastic excitation, and the respective influence of the elastic bogie and rigid bogie systems upon the dynamics characteristics and safety indices of the vehicle system is also obtained in this paper. The results show that, in comparison with rigid bogies, the vertical vibration of the elastic bogies is more intensive.