부산대학교 도서관

Fully equipped with superconducting magnets, KSTAR has successfully conducted experimental campaigns for 15 years since 2008. The operating environment of KSTAR has become challenging due to long pulse durations, high temperatures, and large plasma currents. The 16 TF coils and 7 pairs of PF coils experience substantial electromagnetic forces during plasma discharge, given the high current and magnetic field, and the TF coil structure bears these loads. Strain gauges were installed to monitor the stresses in TF structures during cool-down and operation. This study involves electromagnetic and structural analyses. The finite element analysis model was developed, considering the strain gauge mounting positions and orientations, modified materials, and the as-built design. The structural behaviors observed during campaigns are compared with the analytical results.