Based on the evacuated tube high- T _c superconducting (HTS) side-suspension (SS)-maglev circular track system which reached the maximum running speed of 160km/h, we studied the dynamical magnetic resistance of the maglev vehicle moving along the magnetic track. Different magnetic field gradients are formed by stacking silicon steel sheets on the surface of permanent magnet guideway (PMG) in this work. The running resistance of the prototype vehicle under different magnetic field gradients is acquired by processing the velocity attenuation data measured via acceleration sensor during the running process. The corresponding magnetic resistance is obtained by further data processing and analysis. A peak was observed in the low speed range of the speed dependent curve of the magnetic resistance, which can be attributed to the influence of the resonance. When the running speed of the maglev vehicle exceeds a certain value, the magnitude of magnetic resistance is positively related to the running speed and magnetic field gradient. The results of this study can provide a reference for the optimization of the manufacturing cost, performance, maintenance and safety in the application of HTS maglev vehicle.

中文翻译：

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真空管轨道中高温超导磁悬浮车辆的动态磁阻

基于真空管高 Ť _ç超导（HTS）侧悬（SS）-磁悬浮圆形轨道系统，最高运行速度达到160km/h，我们研究了磁悬浮车辆沿磁轨运动的动态磁阻。在这项工作中，通过在永磁导轨（PMG）的表面堆叠硅钢片形成不同的磁场梯度。通过对加速度传感器在行驶过程中测得的速度衰减数据进行处理，得到样车在不同磁场梯度下的行驶阻力。通过进一步的数据处理和分析得到相应的磁阻。在磁阻的速度相关曲线的低速范围内观察到峰值，这可以归因于共振的影响。当磁悬浮车辆的运行速度超过一定值时，磁阻的大小与运行速度和磁场梯度呈正相关。研究结果可为高温超导磁悬浮车辆应用中的制造成本、性能、维护和安全优化提供参考。