ID | 66029 |
FullText URL | |
Author |
Ueda, Hiroshi
Graduate School of Natural Science and Technology, Okayama University
Maeda, Hideaki
Japan Science and Technology Agency
Suetomi, Yu
RIKEN Center for Biosystems Dynamics Research
Yanagisawa, Yoshinori
RIKEN Center for Biosystems Dynamics Research
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Abstract | This paper overviews the combined effects of winding, cool-down, and screening current-induced stresses in REBCO coils. First, a simulation method to model the circumferential stress modification effect due to the screening-current is overviewed. The simulation includes coil winding, cooling down, and coil charge up to the operating current. Second, we will compare the numerical simulation results with the experimental results. The numerical simulations for a dry coil and an epoxy impregnated coil agree well with the experimental results. Third, the enhanced circumferential stress did not degrade the performance of a dry winding REBCO coil, but the improved increased compressive stress buckled the coil structure. Finally, it is demonstrated that epoxy impregnation has beneficial effects in reducing the stress modification effect. However, the circumferential stress is enormously enhanced at the coil ends, sometimes resulting in degradation of the coil performance.
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Keywords | REBCO magnet
screening current
mechanical stress
combined effect
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Published Date | 2022-03-21
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Publication Title |
Superconductor Science and Technology
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Volume | volume35
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Issue | issue5
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Publisher | IOP Publishing
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Start Page | 054001
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ISSN | 0953-2048
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NCID | AA10686810
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Content Type |
Journal Article
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language |
English
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OAI-PMH Set |
岡山大学
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Copyright Holders | © 2022 The Author(s).
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File Version | publisher
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DOI | |
Web of Science KeyUT | |
Related Url | isVersionOf https://doi.org/10.1088/1361-6668/ac4b9e
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Citation | https://creativecommons.org/licenses/by/4.0/
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Funder Name |
Japan Science and Technology Agency
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助成番号 | JPMJMI17A2
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