FIELD: motors and pumps.
SUBSTANCE: method provides for measuring geometrical coordinates for an aggregate of points being on the same cross section of the blade and calculating one aerodynamic parametre of blade cross section based on the measured coordinates. The method also includes checking values of the calculated aerodynamic parametre deviation from the allowable tolerable range to be defined by nominal value of aerodynamic parametre for a reference blade and corresponding tolerance. Finally, the blade is accepted if aerodynamic parametre value is within tolerable limits, and rejected, if aerodynamic parametre value is outside tolerable limits.
EFFECT: improved monitoring of gas turbine motor blades.
8 cl, 7 dwg
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RU2670330C2 |
