计算机辅助技术在螺旋桨总图绘制上的应用

Application of propeller drawing based on computer aided drawing

利用AutoCAD提供的二次开发工具VBA实现了螺旋桨总图的自动绘制,详细介绍了螺旋桨总图绘制的方法与步骤,重点从伸张轮廓的绘制、正投影轮廓的绘制和侧投影轮廓的绘制三方面说明了螺旋桨总图绘制的实现过程。并在此基础上开发了常规螺旋桨计算机辅助设计系统。该系统能提高工作效率,为船用螺旋桨的精确和高效绘图寻求了一条新的途径。

The propeller automatical drawing is obtained by using the secondary-development technology VBA of AutoCAD. The method and basic steps to achieve drawing of propeller are introduced, especially the drawing of expanded outline, project outline and side projection. And the computer aided design system of conventional propeller is developed on the base of it. The system can improve the efficiency of design and find a new way to plot marine propeller exactly and effectively.