In this paper,a vehicle-bridge lateral dynamic analysis model considering the pier body vibration was established based on the principles of vehicle dynamics,structural dynamics and PD control algorithm,studying the lateral coupling vibration of medium-speed maglev with the participation of the bridge piers.The analysis of lateral coupling vibration of medium-speed maglev system is based on the programming of Mathematica software,and the influence rule of different pier heights on system vibration is studied.The results of the study suggest that the wind load is the main excitation source of lateral coupling vibration of medium-speed maglev system.The influence of wind load on the pier has limited influence on the dynamic response of the vehicle system,and the change of the height of the pier has little impact on the dynamic re-sponse of the vehicle system.The wind load on the pier has a great influence on the displacement response of the rail beam with 20％difference value.The height of the pier and the displacement of the rail beam are not a single linear relationship,while there is a critical pier height value,which is less than the critical val-ue.The pier height is positively correlated with the displacement of the rail beam,more than the critical val-ue,which is negatively correlated.
维普
万方数据