{"title":"Characteristic resistance change of no-insulation REBCO pancake coils by deformation","authors":"So Noguchi","doi":"10.1007/s10409-023-23312-x","DOIUrl":null,"url":null,"abstract":"<div><p>In recent years, the deformation of rare-earth barium copper oxide (REBCO) pancake coils for high magnetic field generations attracts attention. Several screening current simulation considering coil deformation shows a possibility that coil deformation affected screening current distribution. Screening currents would produce strong electromagnetic forces to mechanically damage REBCO pancake coils. Whereas, coil deformation also possibly affects the contact resistances of no-insulation (NI) REBCO pancake coils often called the “characteristic resistances”. The NI characteristic resistances are an important factor of the stability of NI REBCO pancake coil. Therefore, it is necessary to investigate the NI contact resistances as the coil shape deforms. As the result, the NI characteristic resistance change during an external field charging and an NI coil charging is shown in this paper.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"40 4","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Mechanica Sinica","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10409-023-23312-x","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In recent years, the deformation of rare-earth barium copper oxide (REBCO) pancake coils for high magnetic field generations attracts attention. Several screening current simulation considering coil deformation shows a possibility that coil deformation affected screening current distribution. Screening currents would produce strong electromagnetic forces to mechanically damage REBCO pancake coils. Whereas, coil deformation also possibly affects the contact resistances of no-insulation (NI) REBCO pancake coils often called the “characteristic resistances”. The NI characteristic resistances are an important factor of the stability of NI REBCO pancake coil. Therefore, it is necessary to investigate the NI contact resistances as the coil shape deforms. As the result, the NI characteristic resistance change during an external field charging and an NI coil charging is shown in this paper.
近年来，用于产生高磁场的稀土氧化钡铜（REBCO）薄饼线圈的变形问题备受关注。一些考虑线圈变形的屏蔽电流模拟显示，线圈变形可能会影响屏蔽电流的分布。屏蔽电流会产生强大的电磁力，对 REBCO 薄饼线圈造成机械损伤。线圈变形还可能影响无绝缘（NI）REBCO 薄饼线圈的接触电阻，通常称为 "特性阻抗"。NI 特性电阻是 NI REBCO 盘式线圈稳定性的一个重要因素。因此，有必要研究线圈形状变形时的 NI 接触电阻。因此，本文展示了外部磁场充电和 NI 线圈充电时的 NI 特性电阻变化。
期刊介绍：
Acta Mechanica Sinica, sponsored by the Chinese Society of Theoretical and Applied Mechanics, promotes scientific exchanges and collaboration among Chinese scientists in China and abroad. It features high quality, original papers in all aspects of mechanics and mechanical sciences.
Not only does the journal explore the classical subdivisions of theoretical and applied mechanics such as solid and fluid mechanics, it also explores recently emerging areas such as biomechanics and nanomechanics. In addition, the journal investigates analytical, computational, and experimental progresses in all areas of mechanics. Lastly, it encourages research in interdisciplinary subjects, serving as a bridge between mechanics and other branches of engineering and the sciences.
In addition to research papers, Acta Mechanica Sinica publishes reviews, notes, experimental techniques, scientific events, and other special topics of interest.
Related subjects » Classical Continuum Physics - Computational Intelligence and Complexity - Mechanics
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