Motion and thermal stability for high-temperature superconducting maglev vehicle under extreme crosswind conditions

IF 1.3 3区物理与天体物理 Q4 PHYSICS, APPLIED

Physica C-superconductivity and Its Applications Pub Date : 2025-01-15 DOI:10.1016/j.physc.2024.1354620

Le Xu , Jun Zheng , Yonghai Zhao , Peng Pang , Li Wang , Jukun Wang

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引用次数: 0

Abstract

High-temperature superconductor (HTS) pinning magnetic levitation (maglev) systems show significant potential for high-speed rail transportation applications, attributed to their passive and stable levitation arising from the coupling between HTS bulks and the permanent magnetic guideway (PMG). However, there is a lack of research on the operational safety of HTS maglev trains under extreme crosswind conditions as one significant safety issue of the HTS maglev transport tool. Therefore, this paper employs an experimentally validated two-dimensional electromagnetic-thermal-mechanical model to study the temperature rise variations in HTS bulks under different extreme wind scales, The maximum temperature rise inside the bulk submerged in liquid nitrogen remains below 1 K. It also preliminarily explores the wind scales that cause motion instability in HTS maglev trains. The results indicate that extreme crosswind conditions have minimal effect on the temperature rise of HTS bulks. However, under wind scale 12 conditions, HTS maglev trains face a risk of derailment. These findings offer valuable thermal-motion stability insight for informing the future design and practical implementation of HTS pinning maglev systems.

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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.