High-temperature superconducting (HTS) maglev, owing to its unique self-stability characteristic, has a wide range of application prospect in flywheel energy storage, magnetic levitation bearing, rail transportation, and other fields. As the important foundation of the engineering application, researches on the dynamic characteristics of HTS maglev have attracted more and more attention. As most of existing models adopted the power exponential function to approximately fit the relationship between the force and displacement, which can only qualitatively analyze the dynamic characteristics of HTS maglev, this paper employs the flux flow and creep model to deduce a 2D H formulation of the HTS maglev system to make up for this deficiency. Moreover, related experiments were also carried out to validate the accuracy of this simulation model and comparisons with other previous models have been achieved. The results prove that the simulation model can reduce the calculation time still with a good convergence. Then, an electromagnetic-thermal-force multiphysics coupling model was established to analyze the dynamic characteristics, especially the levitation height drift of an HTS bulk above the permanent magnet guideway. Results indicate that when the superconductor has an initial velocity that causes disturbance at the working position, vibration and drift phenomena will occur, and the vertical levitation drift also grows as the velocity increases. The simulation results also show that resonance will occur if the excitation frequency is close to the HTS maglev system’s resonance frequency, and a strong “beat” phenomenon will occur if the excitation frequency is close to twice the main vibration frequency of the system. Additionally, the HTS maglev system shows good anti-vibration ability on the relatively low-frequency region as well as the high-frequency region, which proves that it can be well applied to the rail transportation field. All results could be supported as references for the design of HTS maglev systems and its future application.

高温超导磁悬浮由于其独特的自稳定特性，在飞轮储能，磁悬浮轴承，轨道交通等领域具有广阔的应用前景。作为工程应用的重要基础，对高温超导磁悬浮列车动态特性的研究已引起越来越多的关注。由于大多数现有模型都采用幂指数函数来近似拟合力与位移之间的关系，因此只能定性地分析高温超导磁悬浮的动态特性，因此本文采用磁通流和蠕变模型来推导二维H高温超导磁悬浮系统的配方来弥补这一缺陷。此外，还进行了相关实验以验证该仿真模型的准确性，并已与其他先前模型进行了比较。结果表明，该仿真模型可以减少计算时间，收敛性良好。然后，建立了一个电磁热力多物理场耦合模型，以分析其动力学特性，尤其是永磁体导轨上方高温超导块的悬浮高度漂移。结果表明，当超导体具有在工作位置引起干扰的初始速度时，将发生振动和漂移现象，并且垂直悬浮漂移也会随着速度的增加而增大。仿真结果还表明，如果激励频率接近HTS磁悬浮系统的谐振频率，则会发生谐振；如果激励频率接近系统的主振动频率的两倍，则会发生强烈的“跳动”现象。此外，高温超导磁悬浮系统在相对低频区域和高频区域均具有良好的抗振能力，这证明它可以很好地应用于铁路运输领域。所有结果均可作为HTS磁悬浮系统设计及其未来应用的参考。HTS磁悬浮系统在相对低频区域和高频区域均具有良好的抗振能力，这证明它可以很好地应用于铁路运输领域。所有结果均可作为HTS磁悬浮系统设计及其未来应用的参考。HTS磁悬浮系统在相对低频区域和高频区域均具有良好的抗振能力，这证明它可以很好地应用于铁路运输领域。所有结果均可作为HTS磁悬浮系统设计及其未来应用的参考。