超导悬浮系统中电磁力的有限元分析

Finite element analysis of magnetic levitation force in superconducting magnetic levitation system

利用超导体宏观电磁场的Bean模型和有限元方法对由超导体和超导悬浮线圈所组成的悬浮系统进行了分析计算,通过定量计算与模拟,得到了超导体感应的屏蔽电流分布,从而得到了悬浮间隙及悬浮线圈中的电流对悬浮力的影响规律,同时分析了悬浮线圈尺寸与最大悬浮力之间的关系。这些数值计算结果为优化超导悬浮系统的结构设计提供了理论依据。

This paper analyses the characteristics of a supercondutor - superconduting levitation coil system on the basis of the Bean model for macroscopic electromagnetic fields of superconductors and Finite Element Method. By quantitative simulation, the influences of levitation gap and the current in the levitation coil on the magnetic levitation force are carried out. The relationship between the maximum magnetic levitation force and the geometric size of the levitation coil is obtained. These results and methodology is potentially useful for the optimization design of superconducting magnetic levitation system.