A New Hysteresis Model with Resistor–Capacitor Operator for Magnetorheological Dampers

In this paper, a new hysteresis model with resistor–capacitor (RC) operator for magnetorheological dampers (MRD) is proposed, which takes the excitation current, frequency, and amplitude as input variables. A hysteresis model based on RC operator is established, and the influence of each parameter in the model on the nonlinear behavior of MRD is given. The parameters are fitted based on the test result of an MRD with double rod. The fitting result of parameters shows that the amplitude and frequency of the excitation also affect the parameter values of the model. Base on this, the new hysteresis model is proposed. The parameter fitting results of the proposed model is good. The accuracy of the proposed model and the ability of the model to predict the nonlinear behavior of MRD has been validated by comparing with the experimental data and the RC operator-based model. The comparison results show that the proposed model has higher description accuracy and stronger prediction ability for nonlinear characteristics of MRD.