HYBRID VIBRATION DAMPER WITH ACTIVE MAGNETIC VIBRATOR.

摘要

P Hybrid vibration damper with active magnetic vibrator comprising: an armature (9) interposed between two viscoelastic structures (2a, 2b) of identical stiffness and damping coefficient, to form two damping pads in series between the frame of a rotating machine and the ground or platform; at least three active radial magnetic bearing elements (21) respectively axial (61) arranged without contact opposite a radial ferromagnetic armature (15) respectively axial (18) attached to a ring (12) integral with the armature (9 ); at least three radial detectors respectively axial of the radial and axial position of the ring (12); at least one vibration detection device (80) and control circuits for all of the radial and axial magnetic bearing elements (21; 61) for creating on the external cylindrical body (11) for supporting the bearing omnidirectional reaction forces which tend to oppose the vibration forces generated on the armature (9) by the rotating machine. /P