Hysteretic behavior of a magnetorheological fluid: experimental identification

SummaryThis paper presents the experimental identification of the field-dependent hysteretic behavior of a magnetorheological (MR) fluid. By adopting one of commercially available MR fluids, both the minor loop property and the wiping-out property are experimentally examined via the rotational rheometer. Subsequently, the Preisach model for the MR fluid is established in order to identify the field-dependent hysteretic behavior. The effectiveness of the identified hysteresis model is then verified in the time domain by comparing the predicted field-dependent shear stress with the measured one.