关键词: 计算机应用, 逆向工程, 风扇叶片, 曲面重构

Abstract: Taking fan blades of automobile engine as object, the fan triangular mesh model is obtained by a laser scanning equipment “ATOS”. Using triangular mesh data preprocessing technology and approach of blend surface feature extraction, the fan surface digital model is reconstructed, and then checked with smoothness and precision. The experiment results show that this reverse modeling method can meet design requirements.

Key words: computer application, reverse engineering, fan blades, surface reconstruction