摘要(英) |
Mold flow analysis is used in various injection molding products to help produce high-quality parts. It performs finite element analysis on the injection, pressure holding, cooling and warping processes of plastic parts, and through the solid network Grid is used for simulation analysis, so before conducting mold flow analysis, the IC CAD model needs to be converted into a solid mesh, and then calculated by the solver. Among them, hexahedral mesh is regarded as the best quality mesh type, and the prerequisite for constructing hexahedral mesh is to generate quadrilateral mesh. However, automatic quadrilateral mesh construction is more difficult and usually requires manual construction. Manual construction takes a lot of time. Therefore, our laboratory is committed to developing automated unstructured quadrilateral mesh construction technology. During the development stage, we need to face the problems of meshes with narrow angles, mesh side lengths that are too long or too short, Poor local mesh quality, mesh generation errors, mesh closure, etc. In order to cope with the above situation, this study improves the algorithm based on the Paving algorithm and improves the grid construction process. The perfect detection methods and grid correction methods in each function are developed for extensive testing of IC CAD models. In order to ensure the stability of the execution of the program, various parameters in the function are discussed, the effects of parameter changes are compared, and the best parameter combination is obtained. |
參考文獻 |
參考文獻
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