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Interaction Dynamics of a Maglev Vehicle Moving on Guideways Considering Support Settlement

机译：考虑支撑沉降的磁悬浮列车在导轨上的相互作用动力学

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摘要

As a maglev transport route is planned to cross a region with soft soil, the interaction dynamics of vehicle/guideway is of great concern in riding quality and running safety of the maglev system. This study presents a computational framework to investigate the dynamic response of a maglev vehicle moving on guideway girders considering support settlement. Due to motion-dependent nature of magnetic forces in a maglev suspension system, an on-board hybrid PI controller in conjunction with Ziegler-Nicholas (Z-N) method is designed to regulate the magnetic force and control the vibration of the running maglev vehicle. To include the influence of support movements on vehicle/guideay dynamic analysis, the total response of the guideway girders is decomposed into the static response due to support settlement and the dynamic component caused by inertial effect of beam vibration. In this study, an analytical solution of the static displacement of the beam is presented and the dynamic analysis of the maglev vehicle/guideway coupling system is performed using iterative approach. Numerical studies indicate that decreasing levitation gap of a maglev vehicle may mitigate vehicle's response; but once guideway support settlement is taken into account, the response of the maglev vehicle with smaller air gaps would be amplified significantly at higher speeds.
机译：由于计划将磁悬浮运输路线穿越软土地区，因此，车辆/导轨的相互作用动力学对磁悬浮系统的乘坐质量和运行安全性至关重要。这项研究提出了一个计算框架，以研究考虑支撑沉降的在轨道梁上行驶的磁悬浮车辆的动力响应。由于磁悬浮系统中磁力的运动相关特性，因此设计了一种混合式PI控制器，结合Ziegler-Nicholas（Z-N）方法来调节磁力并控制行驶中的磁悬浮车辆的振动。为了包括支撑运动对车辆/引导动力学分析的影响，由于支撑沉降和梁振动的惯性效应引起的动态分量，导轨大梁的总响应被分解为静态响应。在这项研究中，提出了梁的静态位移的解析解，并使用迭代方法对磁悬浮车辆/导轨耦合系统进行了动力学分析。数值研究表明，减小磁悬浮车辆的悬浮间隙可能会减轻车辆的响应。但是一旦考虑了导轨支撑的沉降，气隙较小的磁悬浮车的响应速度就会大大提高。

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  • 会议地点 Paris(FR)
  • 作者

    J. D. Yau;

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    Department of Transportation Management Department of Architecture Tamkang University TAIWAN;

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  • 正文语种 eng
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