Method of measuring the unbalance of rotors, particularly of turbines for motor-vehicle turbochargers
AssigneeREDAT S.p.A.
InventorsFrancesco Gregoretti, Leonardo Reyneri
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Abstract
A method of measuring unbalances of a rotor is described and is based on: a) imparting a rotation to the rotor about its mechanical axis, b) compensating dynamically for the forces of inertia due to the unbalances, by means of actuators, until zero vibration of the rotor, at least along an axis perpendicular to the axis of rotation, is achieved, and c) analytically obtaining the magnitude and the angular position of the unbalances, related to one or more reference planes preselected by the user, upon the assumption that the position of the centre of gravity of the rotor is known.
Claims12
A method of measuring unbalances of a rotor, wherein it comprises the steps of:
- a) imparting a rotation to the rotor about its mechanical axis,
- b) compensating dynamically for the forces of inertia due to the unbalances, by means of actuators, until zero vibration of the rotor, at least along an axis, perpendicular to the axis of rotation, is achieved, and
- c) analytically obtaining the magnitude and the angular position of the unbalances relative to one or more reference planes preselected by the user, upon the assumption that the position of the centre of gravity of the rotor is known.
Dependencies are inferred from the claim text.