Research on Reverse Engineering for Blades of Axial Flow Compressors Based on Parameterization

To acquire the digital model of axial compressors on the actual projects, a Reverse Engineering procedure of the blade which has high accuracy and efficiency based on Parametric Modeling was developed. To meet the requirements of geometric characteristics and aerodynamic optimization design and accuracy of overall blade, a method of blade-measuring path planning based on curves of cross sections and blade body surfaces was presented. For solving the problems of difficulty in the definition and fitting in primary parametric surfaces and connections between them, a parametric surface definition method of typical axial compressors blade based on blade geometry was presented and the connections were fit with a process of primary parametric surface boundary-splicing surface generation. Finally, an example of Reverse Engineering for blades of axial flow compressors based on parameterization was given.