Method for monitoring health of airfoils

摘要

A method for monitoring the health of one or more blades (12) is presented. The method includes steps of determining (106) a delta TOA corresponding to each of the one or more blades (12) based upon respective actual time of arrival (TOA) of the one or more blades (12), determining (320) a normalized delta TOA corresponding to each of the one or more blades (12) by removing effects of one or more operational data from the delta TOA, and determining (330) a corrected delta TOA corresponding to each of the one or more blades by removing effects of reseating of the one or more blades from the normalized delta TOA.