Design Optimization of Thin-Walled Dipole-Magnet Vacuum Chamber Made of Iron: A Simulation Study

The mechanical properties of the thin-walled dipole-magnet vacuum chamber, made of pure iron and dedicated to the high intensity heavy-ion acceleration facility (HIAF), were mathematically modeled and numerically simulated in finite element method with ANSYS Workbench for design optimization.The influence of the geometry and configuration of the strengthening ribs on the static stress and deformation profiles of the ultra-high vacuum (UHV) chamber was investigated.The simulated results show that the height of the strengthening rib strongly increases the strength and rigidity of the vacuum chamber, and that the optimized vacuum chamber meets the stringent mechanical requirements.In addition, the multi-objective optimization and structural optimization were performed, with software Design Exploration and Shape Optimization, to minimize the stress, deformation and mass of the vacuum chamber.