Adaptive Planning Method for Measuring Points of Blade Section Line

摘要

An adaptive planning method for measuring points of blade section line is presented due to the less distribution of measuring points along the blade edge specified by chordal tolerance method which results in the edge information loss. Based on the chordal tolerance method, the adaptive planning method provides the number and distribution of measuring points along the blade section line on condition of the given initial number of measuring points and threshold value of chordal tolerance. A simulation system based on MATLAB is developed to compare the adaptive planning method with the chordal tolerance method. The measuring tests of blades are carried out according to the measuring points specified by chordal tolerance method and by adaptive planning method respectively. The simulation and measuring results indicate that the distribution of measuring points along the blade edge specified by adaptive planning method is more reasonable than those by chordal tolerance method and that the total number of measuring points is reduced considerably and the measuring efficiency is increased by adaptive planning method.