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For the 3D model reconstruction of centrifugal pump inducer based on reverse engineering, the hub and the blade of centrifugal pump inducer are reconstructed respectively according to their structures. This paper firstly introduces the laser scanning method by which the rotary-future based model reconstruction of hub is achieved with the technology of the crosssectional constraints. And then taking advantage of the raw point cloud data of inducer blade, the secondary point cloud fairing is used on the blade in the close-to-streamline direction and axis direction. After the secondary point cloud fairing, the B-spline curve fitting can be realized in the two different directions, thus getting the corresponding blade through layout with the use of surface meshes. Finally, combining the reconstruction of hub with that of blade, we can get the whole 3D model of centrifugal pump inducer. This paper also explains the accuracy detection for reconstruction model to illustrate the accuracy and feasibility of this method.

Reconstruction Technology Application of Reverse Engineering in Centrifugal Pump Inducer