| dc.description.abstract | In finite element analysis, the computer aided design (CAD) model must be converted into solid meshes for the analysis of the solver. As for the number, structure and quality of the mesh, they directly affect the efficiency and the accuracy of the simulation. Traditional tetrahedral mesh is bound to be replaced by hexahedral mesh or prism mesh, because of the increasing of precision required for mold flow analysis. However, building up these types of meshes is very time consuming. This study is aimed at automatic mesh generation for common extrusions of thin-shell parts such as ribs, tubes, and columns. It discusses how to build a structured grid, and uses the Moldex3D Mesh module to create the process of automatic mesh based on hexahedral meshes or prism meshes. This proposed method will first record the topology and the geometric information, then establish the data and the connection of the solid meshes building, and finally produce a high-quality structured grid. The results of this study can be used to develop a more complete algorithm of automatic constructing structured grids of protrusion features by combining with a protrusion recognition algorithm for thin-shell parts. | en_US |