Damping Device with Adjustable Damping Force by using Magnetorheological Fluid

摘要

The present invention relates to a vibration reduction device for reducing the vibration generated in industrial machinery or structures, More specifically, the present invention relates to an active vibration reduction system using an MR fluid that is used in the vibration reducing medium MR fluid viscosity is changed according to the magnetic field in order to vary the damping force according to the oscillation signal produced. Vibration reduction apparatus of the present invention according to the configuration as described above, and can be different from the resonance frequency of the vibration reducing medium to perform actively avoid resonant vibration for externally applied, the vibration of the non-resonant band also reduce vibration medium the rigidity of the vibration level can be reduced by different depending on the direction. In addition, changes in the oscillation frequency has the effect of artifacts that can respond appropriately to reduce the cost of the possible replacement of the vibration reducing device. ;