The Simplification of Impeller 3D Modeling Based on Pro/E

摘要

The centrifugal pump impeller 3D accurate models were great amount of data, tedious of data acquisition and entry, large energy-consuming, etc. This paper writes a AutoLISP program with AutoCAD secondary development technique, and extract point coordinates of impeller two-dimensional figure. The program simplifies the data measure in AutoCAD and the data input one by one in Pro/E, then, automatically creates impeller modeling in Pro/E with the method of recording MapKey macro. Finally, this paper carries a modelling time analysis, curve curvature analysis, surface curvature analysis and surface reflection analysis of two blades which draw by different methods in Pro / E. The results show that this method of impeller 3D modelling innovates a two-dimensional coordinates extraction method of impeller diagram. In terms of guidance design correction, it has a good practicability. It also plays a significant effect on reducing the data processing cumbersome and increasing the quality modeling.