Lateral Stability Analysis of Superconducting Levitation System with Suspension Between Two Fixed Magnetic Bodies

IF 1.6 4区物理与天体物理 Q3 PHYSICS, APPLIED

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-23 DOI:10.1007/s10948-023-06544-1

Maksim S. Zakharov

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Abstract

The lateral stability of superconducting magnetic levitation systems is critical to safe operation of maglev technologies. The article provides a horizontal stability investigation of suspension of a superconducting system with an object levitating between two magnetic bodies. The system consists of bulk high-temperature superconductors (HTSs) and permanent magnets (PMs). The numerical analysis is carried out for different designs of the system (an HTS suspended between two fixed PMs and a PM between two HTSs). The stability of levitation is studied with respect to small horizontal displacements from an equilibrium position. Based on the analysis of horizontal force gradients in basic traditional maglev systems, it is shown that during levitation in the gap, the lateral stability is mainly provided by the attractive interaction of the suspended object with the upper fixed body. As a result of modeling, united diagrams with regions of stable and unstable levitation have been obtained. They show stable suspension positions along the gaps of different sizes.

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两固定磁体间悬浮超导悬浮系统的横向稳定性分析

超导磁悬浮系统的横向稳定性对磁悬浮技术的安全运行至关重要。本文研究了悬浮在两个磁性体之间的超导系统的水平稳定性。该系统由大块高温超导体(HTSs)和永磁体(pm)组成。对两种不同的系统设计进行了数值分析，一种是悬浮在两个固定PM之间的HTS，另一种是悬浮在两个HTS之间的PM。从平衡位置出发，研究了相对于小水平位移的悬浮稳定性。通过对传统基础磁悬浮系统水平力梯度的分析，表明在间隙悬浮过程中，横向稳定性主要由悬浮物与上部固定体的引力相互作用提供。通过建模，得到了具有稳定和不稳定悬浮区域的统一图。它们沿不同大小的间隙表现出稳定的悬浮位置。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Superconductivity and Novel Magnetism 物理-物理：凝聚态物理

CiteScore

3.70

自引率

11.10%

发文量

342

审稿时长

3.5 months

期刊介绍： The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.