The Establishment of Dynamic Model That Based on Magnetorheological Damper

In this paper, according to the result of characteristics experiment of MRF(magnetorheological fluid), we design Bingham dynamic model that describes MRD(magnetorheological damper) dynamic characteristics. The model has simple structure and clear physical concept, as well it is the most common dynamic model. Aiming at identify the parameter of Bingham model, we propose two kinds of algorithm firstly, one named least squares algorithm, another named Bezier curve algorithm. Then on the basis of mastering principles of two algorithm above, we compare Bingham model expression that after parameter identification with experimental data curve. Finally, from the result we can see whether Bingham model could accurately describes the damping force characteristics or not.