Numerical analysis and experiments of levitation force and bearing stiffness of superconducting magnetic bearings

IF 1.3 3区物理与天体物理 Q4 PHYSICS, APPLIED

Physica C-superconductivity and Its Applications Pub Date : 2025-03-12 DOI:10.1016/j.physc.2025.1354680

Satsuki Okumura , Kotaro Iida , Yutaka Terao , Hiroyuki Ohsaki , Tomotake Matsumura

引用次数: 0

Abstract

We developed FEM analysis models of superconducting magnetic bearings (SMBs) and analyzed their levitation force and bearing stiffness characteristics. The 2D axisymmetric model is calculated by the A-V-H formulation, and the 3D model is calculated by the H-φ formulation. COMSOL Multiphysics, a general-purpose physics simulation software, was used in the analysis and the power law model was applied to the superconductor's current-voltage characteristics. We also carried out an experiment using a small experimental device of axial type SMB and estimated the levitation force and the bearing stiffness to evaluate the validity of the numerical analysis.

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来源期刊

Physica C-superconductivity and Its Applications 物理-物理：应用

CiteScore

2.70

自引率

11.80%

发文量

102

审稿时长

66 days

期刊介绍： Physica C (Superconductivity and its Applications) publishes peer-reviewed papers on novel developments in the field of superconductivity. Topics include discovery of new superconducting materials and elucidation of their mechanisms, physics of vortex matter, enhancement of critical properties of superconductors, identification of novel properties and processing methods that improve their performance and promote new routes to applications of superconductivity. The main goal of the journal is to publish: 1. Papers that substantially increase the understanding of the fundamental aspects and mechanisms of superconductivity and vortex matter through theoretical and experimental methods. 2. Papers that report on novel physical properties and processing of materials that substantially enhance their critical performance. 3. Papers that promote new or improved routes to applications of superconductivity and/or superconducting materials, and proof-of-concept novel proto-type superconducting devices. The editors of the journal will select papers that are well written and based on thorough research that provide truly novel insights.