An active damper is disclosed which includes: an elastic support body; a first wall section provided at the elastic support body and defines a first liquid chamber; a second wall section provided on an opposite side and defines a second liquid chamber; a partition wall section which separates the first liquid chamber from the second liquid chamber; an orifice in the partition wall section for communication between the first and second liquid chambers; and a damping unit to attenuate the vibrations transmitted from a vibrating source to the vibration-receiving part. The damping unit includes: a coil to generate a magnetic field according to a current supplied; magnetic members forming a closed magnetic circuit for the magnetic field; and a magneto-viscoelastic elastomer having a viscoelasticity changes depending on the magnetic field. At least one of the first and second wall sections, and the partition wall section has the damping unit.
Active damper
17.11.2020
Patent
Elektronische Ressource
Englisch