基于测量数据的叶片截面特征参数提取

Cross-sectional Feature Parameter,Extraction of Blade Based on Measurement Data

为了满足航空发动机叶片尺寸检测的需要,研究了基于测量数据的叶片截面分析技术,给出了弦线,前后缘半径、最大厚度、中弧线的提取方法,实验结果表明此提取方法误差小于0．05mm,可以满足叶片检测的要求。

To satisfy the need of blade geometry inspection of aero-engine, the cross-sectional feature parameter extraction technologies of blade is researched, the related chord line, edge radius, max thick, mean line, extraction methods are presented. The experiment results indicate the tolerance of these extraction methods is less than 0.05 mm, can satisfy the need of blade inspection.