Coupled simulation of vehicle dynamics and aerodynamics

This paper describes the coupled simulation of vehicle dynamics and aerodynamics for high-speed train. The co-simulation model was developed to evaluate the more complicated dynamic behavior such as high-speed train running in the tunnel with curve section. This paper describes the inter-car suspension force and aerodynamic force modeling for composing the co-simulation model. The numerical simulation was undertaken. The simulation results show the vehicle behavior induced by the aerodynamic force and track geometry can be evaluated by the developed co-simulation model. It is concluded that the developed co-simulation model is useful to evaluate vehicle behavior on various track geometry with aerodynamic force.