@article{oai:nifs-repository.repo.nii.ac.jp:00011643,
 author = {TAMURA,  Hitoshi and GOTO,  Takuya and MIYAZAWA,  Junichi and MIYAZAWA, Jun-ichi and TANAKA,  Teruya and YANAGI,  Nagato},
 issue = {6},
 journal = {IEEE Transactions on Applied Superconductivity},
 month = {Feb},
 note = {0000-0003-4210-9859, Superconducting magnets in fusion reactors are subjected to a huge electromagnetic force of >100 MN/m. The magnets have to be sustained with a strong-body structure to avoid high stress and deformation. The total weight of the magnet system in the fusion reactor is estimated to be more than 20,000 tons. We applied topology optimization technique to the magnet support structure to reduce the weight of fusion reactors. Compared with the conventional design, we achieved a weight reduction of >25%. Static and seismic analyses were carried out to validate the soundness of the topology-optimized design. Consequently, the stress against the electromagnetic force in the structure was within the permissible range. It was discovered that using seismic isolation structure can adequately prevent the damage to the magnet system even when directly subjected to a massive earthquake.},
 pages = {1--4(September 2022)},
 title = {Seismic Analysis of Magnet Systems in Helical Fusion Reactors Designed With Topology Optimization},
 volume = {32},
 year = {2022}
}