一种基于模型域分割的规则六面体网格生成方法

To address automatic generation of structured hexahedral meshes, an automatic hexahedral mesh generation algorithm based on model-domain segmentation was proposed. This method constructed an attribute-adjacency graph from geometric attribute of the model to extract domain features and generate partitioning surfaces, thereby decomposing a model domain into multiple simpler subdomains. The subdomains were then automatically classified and matched based on their features, and predefined subdomain mesh templates were applied to generate subdomain meshes. Finally, the subdomain meshes were merged to obtain an all-hexahedral mesh for the entire model. By combining feature-driven domain segmentation with template-based mesh generation, the proposed method reduced manual intervention while ensuring both topological consistency and geometric feature preservation, thereby improving the stability and repeatability of mesh generation. In the template-generation stage, feature-preserving parameterized mapping was combined with topology-constrained sweeping to generate the hexahedral meshes, forming an automated pipeline from domain segmentation to template generation and mesh merging. The method was applied to meshing typical mechanical models, providing a reference for digital simulation and analysis.