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A Study on Drive Modeling and Parameter Estimation for Magneto-Rheological Fluid Damper

Magneto-rheological fluid damper is widely driven by current source. The nonlinear factors become inevitable in system performance improvement. This paper mainly put forward and demonstrated a new theoretical model of MRF damper by the method of experimental modeling. Then a current source circuit was constructed with this model by PSpice. At last, the circuit response influenced by load parameters was analyzed, then get the relationships of load parameters and current response time. The research results show the model can characterize the MRF damper load characteristics accurately and the analysis of the load parameters can gave some useful suggestions to the current source design.