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%.
2024,46(24): 52-55 收稿日期：2024-11-6
DOI：10.3404/j.issn.1672-7649.2024.24.009
分类号：TH176
作者简介：张思斯(1983-),女,硕士,讲师,研究方向为视觉传达
参考文献：
[1] 赖国军, 姜忠龙, 刘金林, 等. 螺旋桨水动力对电力推进轴系校中特性的影响研究[J]. 船舶力学, 2023, 27(2): 294-301.
LAI G J, JIANG Z L, LIU J L, et al. Influence of propeller hydrodynamic force on alignment characteristics of a motor driving shafting system[J]. Journal of Ship Mechanics, 2023, 27(2): 294-301.
[2] 胡心雨, 冉茂, 叶协锋, 等. 基于三维点云的烤烟三维模型构建及株型分析[J]. 中国烟草学报, 2022, 28(3): 127-132.
HU X Y, RAN M, YE X F, et al. Study on the construction of 3D model of flue-cured tobacco based on 3D point cloud[J]. Acta Tabacaria Sinica, 2022, 28(3): 127-132.
[3] 太志伟, 张兴龙, 尹晓龙, 等. 三维船舶模型边界表示转构造表示方法[J]. 计算机辅助设计与图形学学报, 2023, 35(12): 1851-1862.
TAI Z W, ZHANG X L, YIN X L, et al. A method for transforming B-Rep of 3D ship models into CSG[J]. Journal of Computer-Aided Design & Computer Graphics, 2023, 35(12): 1851-1862.
[4] 单东生, 龚京风, 姚炎炎, 等. 基于VB. NET的船用螺旋桨自动建模方法研究[J]. 机械设计与制造, 2022(4): 208-211+215.
SHAN D S, GONG J F, YAO Y Y, et al. Research on marine propeller automatic modeling method based on VB. NET[J]. Machinery Design & Manufacture, 2022(4): 208-211+215.
[5] 金奕星, 吴乘胜, 王建春, 等. 基于RANSE的螺旋桨模型敞水数值模拟方法研究[J]. 船舶力学, 2022, 26(1): 18-29.
JIN Y X, WU C S, WANG J C, et al. Investigation on open-water CFD simulation method for propeller model by using RANSE solver[J]. Journal of Ship Mechanics, 2022, 26(1): 18-29.
[6] 李井义, 胡勇, 俞峰, 等. 以型线图为数据输入的CATIA船体建模方法[J]. 中国舰船研究, 2022, 17(6): 167-173+181.
LI J Y, HU Y, YU F, et al. CATIA modeling method of ship hull with hull line as data input[J]. Chinese Journal of Ship Research, 2022, 17(6): 167-173+181.
