Application of co-simulation based on multi-body system dynamics and finite element method in coupled vibration research between vehicle and bridge
基于多体系统动力学和有限元法的联合仿真在车桥耦合振动研究中的应用*

Set up the whole vehicle model by multi-system dynamics software SIMPACK, and established the dynamic analysis model of the bridge by space bar-shell hybrid finite element method. Then performed the co-simulation of two subsystems (vehicle and bridge)by the interfacing data exchange at discrete communication points to achieve refined numerical simulation of coupled vibration between vehicle and bridge. Taking a simply supported beam bridge on high speed railway as study object, calculated the space vibration responses by co-simulation based on multi-body system dynamics and finite element method when the motor train set run through the bridge at different speeds with elastic wheel/rail contact model. Constructed the new platform of coupled vibration between vehicle and bridge.