ACTIVE VIBRATION CONTROL ACTUATOR SUCH AS USED IN AN ENGINE MOUNT

摘要

Rubber bearings (60) are used in an active actuator since they allow the resonant frequency, or active actuator to be used as force multiplier at a specified frequency. The rubber bearings (60) permit large axial motion while constricting radial motion. In addition, incorporating an active actuator between the first (26) and second (28) chambers of an otherwise standard fluid filled engine mount allows the changes in the motion of the actuator to correspond to pressure changes in the mount itself. These changes can be forced or measured so that any signal could control the motion of the actuator and thus the dynamic pressure level in an engine mount or fluid mount.