Magnetorheological fluid damper with radially-shaped gap and contact-less sealing

The paper is concerned with design, numerical study of magnetic fluid and experimental testing of a linear magnetorheological damper (MR damper) with radially-shaped gap and contact less sealing. Preferred embodiments for MR dampers development are outlined. The structure, materials used in the main components and operation principle of the damper are described. The magnetic field distribution in the damper in steady states and in transients is numerically studied. Force responses measured for the damper in the experimental setup are provided. Directions for further improvements are suggested.