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.
出处
《兵工自动化》
2015年第4期56-59,63,共5页
Ordnance Industry Automation
关键词
涡轮叶片造型
参数化
知识工程
CATIA
G2连续
aero-turbine blade modeling
parameterization
knowledge engineering
CATIA
G2 class continuity
