Method and system for determining damping force of magnetorheological damper

The invention relates to a method and system for determining damping force of a magnetorheological damper. The method comprises the steps that a liquid flow mechanical analysis model is established, and set structure size parameters of the magnetorheological damper are obtained; the viscosity and yield stress of a magnetorheological fluid under magnetic field induction are obtained; the area flowrate of the magnetorheological fluid is determined according to the structure size parameters and the piston speed; dimensionless yield stress is determined according to the area flow rate; the fitting slope between the dimensionless yield stress and the dimensionless pressure gradient is determined; the pressure difference in an induction channel is determined according to the fitting slope and the gap length of an induction zone; the pressure difference in a non-induction channel is determined according to the viscosity, gap structure parameters of the non-induction zone and the area flow rate; the damping force of