基于CATIA 平台的船用螺旋桨三维模型快速设计方法  

Rapid design method for 3D model of marine propeller based on CATIA platform

作　　者：张思斯[1] 董浩 ZHANG Sisi;DONG Hao(Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学,辽宁沈阳110159

出　　处：《舰船科学技术》2024年第24期52-55,共4页Ship Science and Technology

摘　　要：针对船用螺旋桨外形较为复杂的特性,提出基于CATIA平台的船用螺旋桨三维模型快速设计方法。在excel软件内,基于船用螺旋桨直径、螺距等二维主要参数确定二维型值点坐标值,将二维型值点坐标信息转换至三维并进行存储。将Excel软件内的第一个和最后一个三维型值点的行、列序值导入CATIA平台,通过样条曲线连接方法生成反映船用螺旋桨曲面的型值点,连接相邻型值点即可得到轮廓曲线。在CATIA平台内对船用螺旋桨曲面的每根轮廓曲线实施曲率分析,基于曲率分析结果调整不光滑的曲线,生成螺旋桨叶曲面,利用圆形列阵,获取数个桨叶实体,集合桨毂实体完成船用螺旋桨三维模型设计。实验结果显示该方法可有效设计出船用螺旋桨三维模型,且所设计模型的敞水性与螺旋桨实际敞水性差异控制在1%以内。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 parameters such as the diameter and pitch of the marine propeller,the coordinate values of the two-dimensional profile points are determined,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 surface,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%.

关 键 词：CATIA平台 船用螺旋桨 三维模型 型值点 轮廓曲线 

分 类 号：TH176[机械工程—机械制造及自动化]