Mechanical Analysis of Cryostat Feed-Through for ITER TF Magnet

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.