Abstract
A method for modeling anElectrorheological(ER) damper is proposed. The modeling method comprehends two simple steps: characterization and model customization. These steps are based on the experimental data of the damper behavior. Experiments were designed to explore the nonlinear behavior of the damper at different frequencies and actuation signals (i.e., automotive domain). The resulting model has low computational complexity. The method was experimentally validated with a commercial damper. Theerror-to-signal Ratio(ESR) performance index was used to evaluate the model accuracy. The results were quantitatively compared with two well-known ER damper models: theChoiparametric model and theEyring-plasticmodel. The new proposed model has a 44% better ESR index than theChoiparametric model and 28% for theEyring-plasticmodel. A qualitative comparison based on density plots highlights the advantages of this proposal.
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