Since the discovery of high temperature superconducting (HTS) material, HTS maglev with the characteristics of self-stabilization and zero magnetic drag, has shown excellent potential for the future transportation application. However, this stability characteristic of HTS maglev is difficult to be fully ensured in a spatial position, because of the magnetic flux flow and creep of the HTS bulk. Hence, to study the drift phenomenon of the HTS maglev vehicle excited by this unguaranteed stability characteristic, the linear superconducting magnetic bearing (SMB) system, composed of a ring permanent magnetic guideway line (double track) and a HTS maglev vehicle "Su-per-Maglev", was utilized. This system aims to explore the drift phenomenon in the vertical and lateral direction of the whole maglev vehicle under various operation conditions: different running speed, unbalance loading and cyclic loading situations. As an illustration induced by the experimental results, the lateral drift (LD) in faster running speed (15 km/h) is twice than that in 10 km/h. And com-pared to the constant load condition, the vertical drift (VD) in the cyclic load is larger. Moreover, with time going by, both of LD and VD tend to be stable. Specifically, for the LD curve, it can be fitted by an exponential function. Finally, all the above experimental re-sults support reference for the future design and study of linear SMB systems.

中文翻译：

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多工况下线性SMB系统的纵向和横向漂移行为

自从发现高温超导（HTS）材料以来，具有自稳定和零磁阻特性的高温超导磁悬浮在未来的交通运输应用中显示出极好的潜力。然而，由于高温超导磁悬浮的磁通流动和蠕变，在空间位置上很难完全保证高温超导磁悬浮的这种稳定性特性。因此，为了研究由这种非保证稳定性特性激发的高温超导磁悬浮车辆的漂移现象，线性超导磁轴承（SMB）系统，由环形永磁导轨（双轨）和高温超导磁悬浮车辆“Su-per”组成。 -磁悬浮”，被利用。本系统旨在探究整车在各种工况下垂直和横向的漂移现象：不同的运行速度、不平衡负载和循环负载情况。作为由实验结果引起的说明，在较快的运行速度（15 公里/小时）下的横向漂移（LD）是 10 公里/小时的两倍。并且与恒载条件相比，循环载荷中的垂直漂移（VD）更大。而且，随着时间的推移，LD和VD都趋于稳定。具体来说，对于LD曲线，可以用指数函数拟合。最后，以上所有实验结果都为未来线性SMB系统的设计和研究提供了参考。循环载荷中的垂直漂移（VD）较大。而且，随着时间的推移，LD和VD都趋于稳定。具体来说，对于LD曲线，可以用指数函数拟合。最后，以上所有实验结果都为未来线性SMB系统的设计和研究提供了参考。循环载荷中的垂直漂移（VD）较大。而且，随着时间的推移，LD和VD都趋于稳定。具体来说，对于LD曲线，可以用指数函数拟合。最后，以上所有实验结果都为未来线性SMB系统的设计和研究提供了参考。