Rapid Generation of Feature-based Multi-resolution FEM Model

Multi-resolution finite element (FE) mesh models for different accuracy requirements of analysis are needed and to improve analysis efficiency. This paper proposes a rapid feature-based approach to support the generation of multi-resolution FEM models. Given an input feature model with design features and analysis features, the proposed algorithm consists of three main steps for rapid construction of its associated FEM models. Firstly, the interfaces between every two features of the model are determined; then, the mesh model of each design feature or analysis feature is generated by taking the related interfaces as constraints; finally, the corresponding mesh models are selected to compose the multi-resolution FEM models at a specific level of resolution. Experiment results on practical engineering models also demonstrate that the proposed method is fast and effective.