https://doi.org/10.1140/epjs/s11734-024-01351-8
Regular Article
Design and analysis of mechanical structure for on-board HTS magnets subjected to high acceleration
1
Institute of Electrical Engineering, Chinese Academy of Sciences, 100190, Beijing, China
2
University of Chinese Academy of Sciences, 100049, Beijing, China
3
Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, 250104, Jinan, China
b
wanglei@mail.iee.ac.cn
g
qiuliang@mail.iee.ac.cn
Received:
24
June
2024
Accepted:
29
September
2024
Published online:
14
October
2024
In this paper, we present design ideas for cryogenic and support systems of an on-board magnet used in a high-acceleration high-temperature superconducting (HTS) electrodynamic suspension (EDS) system to achieve the goals of tolerating high acceleration, low weight, and small size. Biconical support structure made of titanium alloy to increase strength and impact resistance, and aluminum alloy dewar to reduce weight. Subsequently, we developed a mechanical analysis model of the on-board magnet considering dynamic electromagnetic and thermal stresses, which can quickly and accurately evaluate the stress distribution in the cryogenic and support systems of the magnet during motion, and potential vibrations and shocks during motion are fully taken into consideration. Based on this model we identified the weak points of the cryogenic and support systems and provided them with ideas for improvement. Finally, the main support and a small-scale single-pole prototype were fabricated to verify the engineering feasibility, and their strength and impact resistance were measured. The test results show that the designed cryogenic and support devices can meet the requirements for practical applications of high-acceleration EDS systems. The work in this paper can provide guidance for the modeling of on-board magnets and the design of mechanical structures in the future.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
