Rapid design method for 3D model of marine propeller based on CATIA platform
A rapid design method for three-dimensional models of marine propellers based on the CATIA platform is proposed to address the complex shape of marine propellers.In Excel software,based on the two-dimensional main paramet-ers such as the diameter and pitch of the marine propeller,the coordinate values of the two-dimensional profile points are de-termined,and the coordinate information of the two-dimensional profile points is converted to three-dimensional and stored.Import the row and column values of the first and last 3D shape points from Excel software into the CATIA platform,and generate shape points that reflect the surface of the marine propeller using spline curve connection method.Connect adjacent shape points to obtain the contour curve.Perform curvature analysis on each contour curve of the marine propeller surface on the CATIA platform,adjust the non smooth curve based on the curvature analysis results,generate the propeller blade sur-face,use a circular array to obtain several blade entities,and collect the hub entity to complete the three-dimensional model design of the marine propeller.The experimental results show that this method can effectively design a three-dimensional model of marine propellers,and the difference between the open water performance of the designed model and the actual open water performance of the propeller is controlled within 1％.
CATIA platformmarine propellers3D modeltype value pointcontour curve
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