The invention provides a novel anti-
settling magnetorheological fluid damper. The novel anti-setting
magnetorheological fluid damper comprises a shell and a
piston arranged in the shell. The shell isfilled with
magnetorheological fluid. Annular excitation coils are embedded into the inner and outer surfaces of the
piston. An annular permanent
magnet embedded into the
piston is arranged on the inner side of each
excitation coil. The periphery of the piston is sleeved with a magnetic conducting ring. The magnetic conducting ring is connected with the piston through a connecting rod. The magnetic conducting ring is in clearance fit with the inner wall of the shell. The
damper not only can realize variable-damping semi-
active control to meet the working condition application, but also can fully utilize the maximum
magnetic field area originally acting in the piston shell, a traditional magnetic conductive closed-loop
magnetic circuit is changed so that the damper can act on the magnetorheological fluid, the anti-
settling property of the magnetorheological fluid is enhanced, and the
magnetic energy heating of a cylinder
barrel is reduced. By the adoption of the embedded permanent
magnet design, it is ensured that the damper also has the
magnetic field output under the non-current condition, the anti-
settling purpose is realized through the action of a
magnetic field, the service life of the damper is prolonged, and longer stability performance is maintained; and meanwhile, the embedding of permanent magnets can also make the damper perform bidirectional adjustment of
magnetization and demagnetization.