ITER纵场磁体过渡馈线结构力学分析

Mechanical Analysis of Cryostat Feed-Through for ITER TF Magnet

摘要: 运用数值方法计算了不同等离子体运行时刻纵场磁体过渡馈线(CFT)超导母线上的电磁载荷，并确定了磁感应强度最大的时刻，采用增量有限元法对过渡馈线进行非线性力学分析，得到不同工况下结构上的应力分布及变形情况。分析结果表明，带有万向节的过渡馈线结构具有足够的强度来承受运行过程中的各种载荷，从而证明了结构设计的合理性。

Abstract: By means of numerical method, the magnetic field strength on cryostat feed-through (CFT) busbars for TF magnet at different plasma scenarios was calculated, in order to get the maximum electromagnetic loads. Finite element mechanical analysis was performed to know the stress and deformation of CFT under different working conditions. The results show that the proposed CFT structure with gimbals is properly designed, which can withstand all the electromagnetic, thermal and mechanical loads expected during operation.