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Dynamic analysis of guideway structures by considering ultra high-speed Maglev train-guideway interaction

机译：考虑超高速磁悬浮列车-导轨相互作用的导轨结构动力分析

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摘要

In this study, the new three-dimensional finite element analysis model of guideway structures considering ultra high-speed magnetic levitation train-bridge interaction, in which the various improved finite elements are used to model structural members, is proposed. The box-type bridge deck of guideway structures is modeled by Nonconforming Flat Shell finite elements with six DOF (degrees of freedom). The sidewalls on a bridge deck are idealized by using beam finite elements and spring connecting elements. The vehicle model devised for an ultra high-speed Maglev train is employed, which is composed of rigid bodies with concentrated mass. The characteristics of levitation and guidance force, which exist between the super-conducting magnet and guideway, are modeled with the equivalent spring model. By Lagrange's equations of motion, the equations of motion of Maglev train are formulated. Finally, by deriving the equations of the force acting on the guideway considering Maglev train-bridge interaction, the complete system matrices of Maglev train-guideway structure system are composed.
机译：在这项研究中，提出了一种新的考虑超高速磁悬浮列车-桥梁相互作用的导轨结构三维有限元分析模型，其中使用了各种改进的有限元来模拟结构构件。盒式导轨结构桥面是由具有六个自由度（DOF）的不合格平板壳有限元建模的。桥面板上的侧壁通过使用梁有限元和弹簧连接元件来理想化。使用为超高速磁悬浮列车设计的车辆模型，该模型由质量集中的刚体组成。用等效弹簧模型对超导磁体和导轨之间存在的悬浮和引导力特性进行建模。通过拉格朗日运动方程，可以得出磁悬浮列车的运动方程。最后，通过考虑磁悬浮列车-桥梁相互作用推导作用在导轨上的力的方程，组成了磁悬浮列车-导轨结构系统的完整系统矩阵。

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