Vibration damper has an active magnetic vibrator hybrid.

摘要

Vibration damper to the active magnetic vibrator comprising: a reinforcement (9) is interposed between two structures viscoelastic (2a, 2b) of stiffness and damping coefficient identical, so as to form two damping studs in series between the frame of a rotating machine and the ground or a flat - shape; at least three radial active magnetic bearing elements (21) respectively in the axial (61) arranged without contact in front of a ferromagnetic core (15), respectively, radial and axial (18) mounted on a ring (12) fixed to the frame (9); at least three radial detectors, respectively, of the axial and radial and axial position of the ring (12), at least one device (80) of the detection of vibration, and the servo-control circuits of the assembly of the magnetic bearing elements, radial and axial (21, 61) in order to create on the outer cylindrical body (11) supporting the bearing elements of the omnidirectional reaction forces which tend to oppose the forces of the vibration generated on the frame (9) by the rotating machine.