航空学报 > 1991, Vol. 12 Issue (4): 203-206

一类双三次样条曲面及其应用

许有信, 倪仕昇   

  1. 南京航空学院
  • 收稿日期:1989-12-18 修回日期:1990-04-26 出版日期:1991-04-25 发布日期:1991-04-25

A CLASS BICUBIC SPLINE SURFACE AND ITS APPLICATION

Xu Youxin, Mi Shisheng   

  1. Nanjing Aeronautical Institute
  • Received:1989-12-18 Revised:1990-04-26 Online:1991-04-25 Published:1991-04-25

关键词: 相交线, 压气机叶片, 数学模型, 双三次样条曲面

Abstract: The mathematical model for compressor stator blade is first given by using the bicubic spline surface with improved boundary condition. The intersecting problem among the cubic spnue curve, spline revolution surface and bicubic spline surface is discussed. Finally, a theorem about prediction of subdivision numbers is given.

Key words: intersect line, mathematical model, compressor blade, bicubic spline surface