Abstract
The large marine propeller blade is deforms easily because of the cutting force in the process. In view of this situation, the distribution of support positions is researched. For the irregular shape of propeller blade, combine VC with ACIS and get the coordinates of the points on the space surface according to the points of the parameter interval. Optimize the distribution of support points using the method which combine the secondary development of ANSYS with Genetic Algorithms, and get reasonable support positions. By the combination of the above several ways, the optimization of support positions can be realized, and the target of reducing the deformation of propeller blades can be reached.
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