Patent ID: 7774157
Filing Date: 2010-08-10
Classification: F01D,F05D

Abstract:
1. A method of checking a turbomachine blade, comprising: choosing at least one aerodynamic parameter of the turbomachine blade to verify if the at least one aerodynamic parameter is within a validity range, the at least one aerodynamic parameter is chosen from a group of aerodynamic parameters comprising β measuring with a measuring device a plurality of geometrical coordinates of a plurality of points located on the profile of at least one blade section; calculating with a processor the at least one aerodynamic parameter of the blade section as a function of the plurality of geometrical coordinates; verifying whether the at least one calculated aerodynamic parameter departs from the validity range defined by a value of a nominal aerodynamic parameter of a reference blade and an associated tolerance; and validating the turbomachine blade if the value of the calculated aerodynamic parameter falls within the validity range or rejecting the turbomachine blade if the value of the calculated aerodynamic parameter lies outside the validity range, wherein β wherein the percentage P being within a 1 percent to 20 percent range of the total length of the centerline, of the suction face or of the pressure face as the curvilinear abscissa, wherein VARβ wherein AVβ wherein the first percentage P