论文部分内容阅读
基于多自由度的复杂系统,介绍了结构动力分析的逐步积分法—Wilson-θ法。再根据铁道车辆垂向振动的特性,建立了六自由度的车辆结构振动模型,将Wilson-θ法应用于求解六自由度铁道车辆的垂向振动响应,并分析了Wilson-θ法的参数θ和步长的确定原则。仿真结果客观的反映了铁道车辆结构系统振动的特性,说明了Wilson-θ法应用于铁道车辆结构振动系统的仿真中不但是可行的而且是成功的。
Based on the multi-degree-of-freedom complex system, the step-wise integration method-Wilson-θ method for structural dynamic analysis is introduced. According to the characteristics of vertical vibration of railway vehicles, a 6-DOF vehicle structural vibration model is established, and the Wilson-θ method is applied to solve the vertical vibration response of 6-DOF rolling stock. The parameter θ And the determination of the principle of step. The simulation results objectively reflect the vibration characteristics of the railway vehicle structural system. It shows that the Wilson-θ method is not only feasible but also successful in the simulation of railway vehicle structural vibration system.