Abstract
Nowadays, manufacturers use computer-aided design for simulations. The reason is that the cost of performance test using actual products is expensive, so the cost of performance simulation using CAD models is lower than it. In this paper, we think about hexahedral meshes for finite element analysis, because simulations with hexahedral mesh are more accurate than those with tetrahedral meshes. In the structural analysis between two objects, the stress peaks around the contact regions. This is often at a "sharp feature". Thus, to obtain accurate simulation results, the surface mesh must represent sharp features. Our purpose is automatic hexahedral mesh generation with sharp features to precisely represent the corresponding features of a target shape. To represent sharp feature of target shape, we use normal vector in our fitting of hexahedral mesh In our research, we search appropriate values of parameters that are used in our fitting being considered multi-normal vector through experiments.
