Mechanical analysis of the European DEMO central solenoid pre-load structure and coils
Mechanical analysis of the European DEMO central solenoid pre-load structure and coils
复制标题
欧洲DEMO中央电磁铁预载结构及线圈的力学分析
DOI：
10.1016/j.fusengdes.2018.12.009
复制
发表时间：
2019
影响因子：
1.7
通讯作者：
L. Zani
中科院分区：
文献类型：
--
作者：
F. Nunio;A. Torre;L. Zani
欧洲示范聚变托卡马克的概念前设计目前正在欧洲核聚变联盟的协调下进行。本文报道了紧接在CEA提出的绕组定义阶段之后的中心螺线管(CS)的力学分析。第一步是牵引板预压结构的牵伸尺寸。然后建立了考虑扇形对称模型和涂抹绕组特性的CS的整体有限元分析(FEA)，以检查这种预加载结构，并确定对导体最关键的加载情景。最后，对CS绕组进行了轴对称局部有限元分析，详细研究了导体护套和绝缘层中的应力水平。这一概念前分析程序允许评估CEA绕组方案的应力可接受性，并将在未来的磁系统设计迭代中运行。
The pre-conceptual design of the European DEMO fusion tokamak is currently being developed under the coordination of the EUROfusion Consortium. This paper reports the mechanical analysis of the Central Solenoid (CS), which comes right after the phase of definition of the winding pack proposed by the CEA. The first step consists in a draft-sizing of the tie-plates pre-compression structure. Then a global Finite element Analysis (FEA) of the CS, considering a sector-symmetry model and smeared winding pack properties is built-up in order to check this pre-load structure, and to identify the most critical loading scenario for the conductor. Finally, an axisymmetric local FEA of the CS winding pack is performed in order to study in detail the stress level in the conductor jacket and in the insulations layers. This pre-conceptual analysis procedure allowed to assess the acceptability of stress for the CEA winding pack proposal, and will be operated during the future magnetic system design iterations.