Magnetic circuit design and computation of a magnetorheological damper with exterior coil

Magnetorheological damper becomes an active damping control method. It was focused on the research of double cylinder damper with interior coils. The main working modes were analyzed. There were some engineering shortages, such as sealing, heat radiation, greater volume, power supply in the traditional MR damper products. A kind of magnetorheological damper with exterior coils was researched. Reasonable layout and parameters were important design factors to require enough magnetic field density with less power loss. So the damper adopt two coils and three magnetic yokes in magnetic design, and worked at the mixed shear valve mode. Magnetic field theoretical computation processes were described and some key parameters were provided. The results of the COMSOL demonstrated the theoretical validation. At last, a 3D assembly drawings was shown, in which the interior volume compensation design method was introduced.