多工况下CFETR超导平台背场线圈预紧系统力学性能研究

doi:10.16568/j.0254-6086.202502007

核工业西南物理研究院 ›› 2025, Vol. 45 ›› Issue (2): 169-175.DOI: 10.16568/j.0254-6086.202502007

多工况下CFETR超导平台背场线圈预紧系统力学性能研究

赵海阔¹，许爱华²，韩厚祥³，李晨阳¹，汪献伟^*1

(1. 江苏理工学院，常州 213100；2. 常州机电职业技术学院，常州 213164；3. 中国科学院等离子体物理研究所，合肥 230031)

收稿日期:2023-10-30 修回日期:2024-05-14 出版日期:2025-06-15 发布日期:2025-06-13
通讯作者: 汪献伟(1984-)，男，河南洛阳人，副教授，研究方向为数字化设计及制造，多物理场耦合分析。
作者简介:赵海阔(2000-)，男，河南南阳人，硕士研究生，主要研究方向为数字化设计及暂态电磁问题分析。
基金资助:
江苏省高校面上项目(23KJB470003)；常州市应用基础研究项目(CJ20230012)

Research on the mechanical performance of the pre-tensioning system of the background field coil in the CFETR superconducting platform under multi-load cases

ZHAO Hai-kuo¹, XU Ai-hua², HAN Hou-xiang³, LI Chen-yang¹, WANG Xian-wei¹

(1. Jiangsu University of Technology, Changzhou 213100; 2. Changzhou Vocational Institute of Mechatronic Technology, Changzhou 213164; 3. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)

Received:2023-10-30 Revised:2024-05-14 Online:2025-06-15 Published:2025-06-13

摘要/Abstract

摘要：

背场线圈作为CFETR超导测试平台中重要组成部分，为超导线圈的性能及稳定性测试提供了恒定的磁场环境。然而背场线圈在运行过程中受到重力、预紧力、热应力、电磁力等多种载荷的作用，因此必须通过预紧系统来确保其整体性和稳定性。为了验证预紧系统在多工况下的可靠性，基于均匀化理论，通过仿真模拟对预紧系统在独立预紧、整体组装、整体降温、线圈励磁4种工况下的力学性能进行分析，并采用ASME标准对不同部件的应力进行评定。评定结果表明，各预紧部件的应力峰值均低于应力阈值，并有足够的安全裕度，该分析将为后续背场线圈的优化设计以及加工制造提供理论参考。

关键词: 背场线圈, 预紧结构, 电磁场, 线圈绕组

Abstract:

The background field coil, as an important part of the CFETR superconductivity test platform, provides a constant magnetic field environment for performance and stability testing of superconducting coils. However, the background field coil is subject to multiple loads during operation, such as gravity, preload, thermal, electromagnetic, etc. so its integrity and stability must be ensured by the preload system. To verify the reliability of the preload system under multi-load cases, based on the homogenization theory, the mechanical properties of the preload system are analyzed by simulation under four working conditions, namely independent preload, integral assembly, integral cooling and coil excitation, and the different types of stresses are evaluated by using the ASME standard. The evaluation results show that the stress peaks of each preloaded component are below the stress threshold and have sufficient safety margins, and the analysis will provide theoretical references for the optimal design of the subsequent background field coils as well as their processing and manufacturing.

Key words: Background field coil, Preload structure, Electromagnetic field, Coil winding

中图分类号:

TL62⁺2

赵海阔, 许爱华, 韩厚祥, 李晨阳, 汪献伟. 多工况下CFETR超导平台背场线圈预紧系统力学性能研究[J]. 核工业西南物理研究院, 2025, 45(2): 169-175.

ZHAO Hai-kuo, XU Ai-hua, HAN Hou-xiang, LI Chen-yang, WANG Xian-wei.

Research on the mechanical performance of the pre-tensioning system of the background field coil in the CFETR superconducting platform under multi-load cases

[J]. Nuclear Fusion and Plasma Physics, 2025, 45(2): 169-175.

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多工况下CFETR超导平台背场线圈预紧系统力学性能研究

Research on the mechanical performance of the pre-tensioning system of the background field coil in the CFETR superconducting platform under multi-load cases

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