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首页> 外文期刊>Engineering Structures >Dynamic interaction analysis of the high-speed maglev vehicle/guideway system based on a field measurement and model updating method
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Dynamic interaction analysis of the high-speed maglev vehicle/guideway system based on a field measurement and model updating method

机译：基于现场测量和模型更新方法的高速磁悬浮车辆/轨道系统动力相互作用分析

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摘要

Practical simulation technology is of great importance in the design and research of the maglev system. This paper presents a practical vehicle/guideway model based on an in situ vibration test and model updating method. In this model, the guideway is established by the Finite Element method and then updated by the measurement, and the vehicle is simulated as a 10-degree-of-freedom model, which consists of a car-body and eight magnets. The vehicle interacts with the guideway by the magnetic interactive forces, which are tuned by the current feedback controller. The vehicle/guideway interaction problem is solved by the proposed incremental iteration procedure. Two case studies including the Shanghai High-speed Maglev Commercial Operational Line and the High-speed Maglev Test Line at Tongji University were presented for the validation of the proposed model. Finally, the effects of random surface irregularity and distributed magnetic forces were investigated here, and the frequency response of the guideway was analyzed in detail. The results indicate that the proposed model can provide a practical response prediction and analysis because the dynamic characteristics of the guideway and the excitation frequency of the maglev train are reasonably considered in this model.
机译：实用的仿真技术在磁悬浮系统的设计和研究中非常重要。本文提出了一种基于原位振动测试和模型更新方法的实用车辆/导轨模型。在该模型中，通过有限元方法建立导轨，然后通过测量进行更新，然后将车辆模拟为10自由度模型，该模型由车身和八个磁体组成。车辆通过电磁相互作用力与导轨相互作用，该相互作用力由电流反馈控制器调整。通过提出的增量迭代程序解决了车辆/导轨相互作用的问题。提出了两个案例研究，包括上海高速磁悬浮商业运营线和同济大学的高速磁悬浮测试线，以验证所提出的模型。最后，研究了随机表面不规则性和分布磁力的影响，并详细分析了导轨的频率响应。结果表明，该模型可以合理地考虑到导轨的动态特性和磁悬浮列车的激励频率，从而可以提供实用的响应预测和分析。

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