汽轮机叶片曲面NURBS造型方法  

Surface Modeling for Stream Turbine Blades

作　　者：黄靖[1] 韩庆瑶[1] 邓巍[1] 

机构地区：[1]华北电力大学机械系,河北保定071003

出　　处：《电力情报》2002年第3期42-43,共2页Information on Electric Power

摘　　要：采用非均匀有理B样条对汽轮机叶片曲面造型 ,推导 2× 3次非均匀有理B样条三维点表达式 ,用矩阵表达式代替代数计算形式 ,使自由曲面的计算变得方便 。The surface modeling for stream turbine blade is studied in this paper. The blending degree NURBS method is adopted and the representation of matrix of three dimensional point for 2×3 degree NURBS surface is deduced. This representation of the matrix instead of the algebraic form makes the calculation of three dimensional coordinate in surface easier and offers an efficient mathematical tool.

关 键 词：汽轮机 叶片 曲面造型 NURBS曲面 非均匀有理B样条曲面 数学模型 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]