扭曲变截面风机叶片的几何展开  

The Geometry Development for Skew Changing Section Fan Blades

作　　者：张公升[1] 

机构地区：[1]山东工业大学

出　　处：《风机技术》2000年第5期27-29,共3页Chinese Journal of Turbomachinery

摘　　要：用叶型曲线将扭曲变截面风机叶片分割为若干条状区域 ,对每一区域进行三角剖分 ,并将所有的三角平面展开在同一平面上 ,得到叶片的初始展开平面 ,然后用样条曲线逼近该图形的轮廓线 。Fan blades is firstly decomposed into several strip regions with type line.Each region is then approximated by a number of planar triangles and unfolded into a plane.To have them eliminated the initial pattern is modified by certain deformation.The final shape of the blank is obtained by the approximation of its contour with a spline curve.

关 键 词：风机 叶型 扭曲变截面叶片 几何展开 CAD 

分 类 号：TH402[机械工程—机械制造及自动化]