摘要
由于叶片在沿叶高方向上截面内的截线不是单值函数,所以需要用参数样条的方式构造整个叶片曲面。在分析叶片沿叶高方向上截面数据的基础上,本文将笛卡儿坐标系下的截面数据转换到柱坐标系下,并以极角和叶高为参数构造了双三次插值B样条曲面。
Blades can be constructed by parametric spline surface. because the blades can not express the uniform function on the section along the blade heigh t. Based on analyzing the profile data along the blade height, the section data is translated from Cartesian coordinate system to cylindrical coordinate system. On basis of the translation, the dual cubic interpolation B spline surface wit h the polar angle and height is constructed.
出处
《航空精密制造技术》
北大核心
2002年第1期28-30,共3页
Aviation Precision Manufacturing Technology
关键词
叶片
参数B样条
插值
blade
surface modeling
cylindrical coordinate
