A novel HTS magnetic levitation dining table

• Published in: Physica. C, Superconductivity Vol. 548; pp. 14 - 20
• Main Authors: Lu, Yiyun, Huang, Huiying
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15-05-2018; Elsevier BV
• Subjects: 3D-model; FEM; Finite element analysis; Finite element method; High temperature superconductors; HTS; Low temperature environments; Low temperature physics; Maglev; Magnetic levitation; Magnetic levitation systems; Mathematical models; Numerical methods; Permanent magnets; PMG; Systems stability; Tables; Three dimensional models; YBCO; YBCO superconductors; PMG; YBCO; 3D-model; HTS; Maglev; FEM
• ISSN: 0921-4534; 1873-2143
• DOI: 10.1016/j.physc.2018.01.019

•A novel magnetic levitation dining table is designed applied annular YBCO bulk arrays with concentric annular permanent guideway.•An annular cryogenics vessel which is used to maintain low temperature environment of the HTS bulk array is designed for liquid nitrogen.•A 3D-model finite element method is used for the YBCO bulk magnetic levitation system design.•An equivalent magnetic levitation and guidance forces calculation rules are proposed aimed at the annular HTS magnetic levitation system stability.
High temperature superconducting (HTS) bulk can levitate above or suspend below a permanent magnet stably. Many magnificent potential applications of HTS bulk are proposed by researchers. Until now, few reports have been found for real applications of HTS bulk. A complete set of small-scale HTS magnetic levitation table is proposed in the paper. The HTS magnetic levitation table includes an annular HTS magnetic levitation system which is composed of an annular HTS bulk array and an annular permanent magnet guideway (PMG). The annular PMG and the annular cryogenics vessel which used to maintain low temperature environment of the HTS bulk array are designed. 62 YBCO bulks are used to locate at the bottom of the annular vessel. A 3D-model finite element numerical method is used to design the HTS bulk magnetic levitation system. Equivalent magnetic levitation and guidance forces calculation rules are proposed aimed at the annular HTS magnetic levitation system stability. Based on the proposed method, levitation and guidance forces curves of the one YBCO bulk magnetic above PMG could be obtained. This method also can use to assist PMG design to check whether the designed PMG could reach the basic demand of the HTS magnetic levitation table.