In this dissertation , wind , vehicle and bridge are regarded as an interactional coupling vibration system . , in the analysis model of the system , many factors are considered in detail , such as the fluid - solid coupling interaction between wind and bridge , the solid contact coupling interaction between vehicle and bridge , the stochastic wind load of vehicle , the time variation characteristic of the system induced by train movement 本文將風、車、橋三者作為一個交互作用、協調工作的耦合振動系統,較全面地考慮了風橋間的流固耦合作用、車橋間的固體接觸耦合作用、風對車的空間脈動作用及整個系統的時變特性。