航空涡轮叶片叶身造型参数化设计  

Parameterization of Modeling the Aero-turbine Blade Based on CATIA

作　　者：刘诗汉[1] 马虎[1] 

机构地区：[1]空军第一航空学院航空修理工程系,河南信阳464000

出　　处：《兵工自动化》2015年第4期56-59,63,共5页Ordnance Industry Automation

摘　　要：为提高航空涡轮叶片设计的数字化水平,减轻设计人员的设计计算量,开发了一种基于CATIA的航空涡轮叶片建模方法。首先在分析涡轮叶片几何特征及其气动性能和结构强度的影响因素,确定了叶片截面形状的控制参数,再运用内建于CATIA的知识工程工具和函数,构造三维涡轮叶片。该方法实现了涡轮叶片设计的参数化,所设计叶片的叶身曲面和不同径向位置的截面曲线均达到G2连续。To promote the numeralization of aero-turbine blade design and relieve engineers from heavy designing calculation, a modeling technique of an aero-turbine blade is developed based on CATIA. At first, the geometric features and factors which impact its performance and strength of a blade are analyzed, and some parameters are selected to control the pattern of the section of a blade. Then, some tools and functions of knowledge engineering built in CATIA are used to construct a blade. The technique results to parameterization of aero-turbine blade design, and is proved to be effective while modeling a blade which has a G2 class continuity surface and contours of sections at different radial distance.

关 键 词：涡轮叶片造型 参数化 知识工程 CATIA G2连续 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]