Rsstriction of3- D fan blade governing the form of several conic sections is performed by using CG theory. The blade accuracy is therefore improved and the development simplified.

• 对给出的有限个锥形截面表示的三元流叶片，利用计算机图形学理论重新在三维空间进行了重构，从而提高了叶片展开的精度，简化了展开方法。