Adopt permanent magnet and twin coil to carry out hybrid control's magneto rheological damper

The utility model discloses an adopt permanent magnet and twin coil to carry out hybrid control's magneto rheological damper mainly comprises piston rod, attenuator end cover, attenuator cylinder body, bobbin, permanent magnet and attenuator lug etc.. The piston head of this attenuator is formed by bobbin I, bobbin II and the combination of permanent magnet triplex respectively. Being equipped with a permanent magnet in the middle of the bobbin, making inside single magnetic circuit become hybrid magnetic circuit, the permanent magnet forms two effect hybrid control with the twin coil, has increased the adjustable range of attenuator output damping force to make the attenuator possess great output damping force under initial condition. This structure make full use of the piston head structure, under the prerequisite that does not increase the volume, effectively increased the output damping force. This magnetorheological damper structure is compact, small, can produce great output damping force and have great