Inverstigation on the lateral force of superconducting magnetic bearing with multi-surface levitation by H-φ formulation
Author(s): Chol Yong Yun, Ju Hak Jo, Yu Gwang Ryu, Se Chol Pak, Chung Hyok Kil and U Chol Pak
Abstract: Advantage of a superconducting magnetic bearing (SMB) is that it is a non-contact and is a self-centering. Thus, it is important procedure to predict the vertical levitation force and the lateral one of SMB. There are a number of efforts to calculate the both direction levitation forces, but the vertical levitation forces are only presented in almost studies. In this contribution, a levitation system composed of a cylindrical high temperature superconducting bulk and a cylindrical permanent magnet is simulated in three dimensional system based on H-φ formulation, and a comparing the results with preceding researches have a good agreement in a vertical and a lateral levitation force. In addition, the three surfaces levitation superconducting magnetic bearing (TSL-SMB) is simulated by the same method, so that the lateral levitation force is predicted under axial load condition. In TSL-SMB without opposite magnetization arrangement, the lateral levitation force in attractive arrangement is larger than ones in repulsive arrangement. In TSL-SMB with opposite magnetization arrangement, the bigger the vertical levitation force, the bigger the lateral ones. This paper will contribute to predict and design the SMB with improvement performance.
Chol Yong Yun, Ju Hak Jo, Yu Gwang Ryu, Se Chol Pak, Chung Hyok Kil, U Chol Pak. Inverstigation on the lateral force of superconducting magnetic bearing with multi-surface levitation by H-φ formulation. Int J Multidiscip Trends 2025;7(10):47-56. DOI: 10.22271/multi.2025.v7.i10a.808
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