径向型高温超导轴承悬浮特性的有限元分析
周艳秋1余志强2
Finite Element Analysis of Levitation Characteristics for Radial-type Superconducting Bearing
ZHOU YanqiuYU Zhiqiang
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作者信息:1.大连科技学院电气工程学院,116052,大连；
2.石家庄铁道大学电气与电子工程学院，050043，石家庄
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Affiliation:Dalian University of Science and Technology, 116052, Dalian, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2019.08.020
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中图分类号/CLCN:U237
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栏目/Col:研究报告
摘要:
通过数值模拟方法研究高温超导轴承是重要方法之一。提出了基于H法（磁场强度法）的有限元数学模型，在二维轴对称空间计算了径向型高温超导轴承的悬浮力。通过与试验数据的比较，验证了模型的正确性。基于此模型，分析了在永磁转子轴向运动的过程中，高温超导轴承的磁场特性和超导定子中感应电流密度的分布特性，进而得出相应的结论。建立的数学模型不仅可以分析多层超导定子的径向型高温超导轴承，而且对内转子型和外转子型两类径向型高温超导轴承均适用。
Abstracts:
One of the important ways to study the high-temperature superconducting (HTS) bearings is through numerical simulation. In this paper, a finite element mathematical model based on H method (magnetic field intensity) is established. The levitation force for a radial-type HTS bearing is calculated in a 2D axisymmetric space. The correctness of the model is verified by a comparison with the experimental data. Based on the model, the magnetic field characteristics of the HTS bearing and the distribution of induced current density in the superconducting stator are analyzed during the permanent magnet rotor movement along the axis, corresponding conclusions are obtained. The mathematical model proposed in this paper can not only be used to analyze the radial-type HTS bearings with multi-layer superconducting magnet stator, but also be applied to both the inner rotor and the outer rotor radial-type HTS bearings.
引文 / Ref:
周艳秋，余志强.径向型高温超导轴承悬浮特性的有限元分析[J].城市轨道交通研究，2019，22(08):89.
ZHOU Yanqiu，YU Zhiqiang.Finite element analysis of levitation characteristics for radial-type superconducting bearing[J].Urban Mass Transit，2019，22(08)：89.
ZHOU Yanqiu，YU Zhiqiang.Finite element analysis of levitation characteristics for radial-type superconducting bearing[J].Urban Mass Transit，2019，22(08)：89.
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