| Summary: | 碩士 === 國立中央大學 === 機械工程學系 === 104 === Feature simplification technics can be extensively used in CAE (Computer-Aided Engineering) analysis. In CAE analysis, the need of building up analysis meshes by CAD (Computer-Aided Design) model geometric appearance is indispensable, and subtle features in the model are prone to generate poor quality of analysis meshes which led to CAE analysis of results inaccurate, therefore, simplifying subtle features in the model contributes to CAE analysis accuracy. Fillets which have small radius are common subtle features, hence this thesis intends to modify B-rep(Boundary representation) data of CAD model in order to suppress fillet features which have small radius in the model, thereby avoiding producing poor quality of analysis meshes and improving subsequent CAE analysis accuracy. More than 40 realistic CAD models were tested, and almost all of the fillets on these models were simplified successfully, which can verify the feasibility of the proposed method.
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