Rapid optimal design method for magnetorheological damper

The invention discloses a rapid optimal design method for a magnetorheological damper. The method comprises the steps that the internal radius of the cross section of a cylinder body and the length of a piston are preliminarily determined; the structural constraint of a magnetic force line loop formed by the magnetorheological damper is determined, and structural parameters of relevant components are adjusted and determined according to application requirements; an equivalent magnetic circuit is built according to the magnetic force line loop, a total magnetic resistor of the magnetic force line loop is divided into a plurality of magnetic resistor parts, and a computational formula is given; based on the obtained relation between the magnetic induction intensity of magnetorheological fluid in an annular damping gap and the thickness of the annular damping gap, whether magnetomotive force deficiency or supersaturation exists on the magnetic circuit or not is tested, and the structural parameters of the corresponding components are adjusted; and a relation curve between the thickness of the annular damping gap and adjustable damping force and a relation curve between the thickness of the annular damping gap and adjustable coefficients are drawn, and the thickness of the annular damping gap is finally determined according to application requirements. By the adoption of the rapid optimal design method for the magnetorheological damper, defects of a traditional magnetorheological damper in the aspects of design and optimization of a structure and a magnetic circuit are overcome, and rapid optimal design of the structure and the magnetic circuit is achieved.