基于UG的风电叶片三维建模研究

Study on 3D-modeling for Wind Turbine Blade Based on UG

作为叶片三维CFD分析、叶片结构设计和叶片模具设计的基础,必须建立叶片的三维模型。文章提出了风电叶片的一种三维建模方法,首先介绍了如何合理选取翼型和设计后缘型线,利用Excel软件将翼型坐标点变换为叶片各个截面的三维空间坐标,最后运用UG强大的三维曲面建模功能建立叶片几何外形的复杂曲面。该方法缩短了建模周期,提高了叶片三维模型的准确度,为更好地进行叶片结构分析等后续工作打下良好的基础。文章最后还简单介绍了基于叶片三维模型的初步结构设计,为叶片结构设计和工艺设计人员提供帮助。

As the basis of 3D-CFD blade analysis, blade structure design and blade mold design, the 3D-model of blade must be established. This paper propounds a method of 3D-modeling for blade, firstly introduces how to choose the airfoil and design trailing edge profile reasonably, then uses excel software to transform the coordinate of airfoil into the 3D space coordinate, finally establishes the complex surface of blade geometry by using 3D surface modeling function of UG. This method can shorten the cycle of modeling, improve the blade 3D model accuracy, and lay a good foundation for the blade structure analysis and so on. At last, this paper simply introduces the preliminary structure design based on the blade 3D model, provides help for the blade design and process designers.