Patent ID: 7553125
Filing Date: 2009-06-30
Classification: F01D,G01M,Y02T

Abstract:
1. A method of calibrating the mass of a rotor component to be mounted at the periphery of a rotor, said method comprising the steps of: determining a predetermined value for a calibrated mass of said rotor component; weighing said rotor component thereby obtaining an actual mass of said rotor component; determining a mass difference between said calibrated mass and said actual mass; determining an axis of inertia of the rotor components, said rotor component having three axes of inertia that are perpendicular to one another and that pass through the center of gravity of the rotor component removing by machining a volume of material from the rotor component, said volume of material removed corresponding to said mass difference and being centered on said axis of inertia, said step of removing being performed so as to shift the center of gravity of said rotor component along said axis of inertia without modifying a static balance of the rotor component around said axis of inertia and so as to change the actual mass of the rotor component to be equal to said calibrated mass, within a predetermined tolerance.