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 本文将风、车、桥三者作为一个交互作用、协调工作的耦合振动系统，较全面地考虑了风桥间的流固耦合作用、车桥间的固体接触耦合作用、风对车的空间脉动作用及整个系统的时变特性。
Secondly , to analyze seismic response of the concrete gravity dam , subspace iterative method was applied to compute free vibration period of the dam , time integration method was built up for the seismic time history analysis and formulation of coupled vibration of reservoir water and dam were also deduced 其次，针对混凝土重力坝的地震响应分析问题，采用子空间迭代法计算了大坝的自振周期，建立了地震时程分析的逐步积分方法，并且推导了库水和坝体耦合振动的理论公式。
On the basis of this equation , the general differential equations of coupled bending , torsional and pendular nonlinear vibration about rotor with unbalance character and rubbing character are deduced . the bifurcation and chaos behavior especially the influence on bifurcation and chaos behavior of impact and rubbing fault rotor system 应用数值方法研究了碰摩转子的弯扭摆耦合振动相应的复杂动力学行为,重点研究了转子转速、偏心量等系统参数对碰摩转子弯扭摆耦合振动的分岔和混沌行为的影响以及扭转振动和摆动振动对弯曲振动的影响。
