Bansbach MRF dampers function through the use of Magneto-rheological fluid. MR Fluid is a functional fluid that can be instantly changed between a free moving liquid to a semi-solid state by varying an applied magnetic field. MR fluid has a wide damping range due to formation of chain type clusters of iron particles when induced by a magnetic field in the damping fluid. This action gives the damper an infinitely adjustable damping torque range and lightning-fast response time.
|The rotating shaft is supported with the bearings for providing the freedom of rotation in the main unit casing. A coil is implemented in the main unit casing, and a rotor having the shape of a cup is mounted on the rotating shaft. There is a gap between the internal surface of the main unit casing and the external surface of the rotor. The MR fluid is filled in this gap. When a current is supplied to the coil, a magnetic field line runs through the gap between the main unit casing and rotor, and a magnetic force flows in the MR fluid. When a magnetic force flows in the MR fluid, the iron powder is linked like a chain and the friction force of iron powder generates a force to restrict the rotation between the main unit casing and rotor.