Abstract
This paper presents a study of obtaining a model of the real quarter-car suspension device. The system is equipped with an automotive engineering magnetorheological (MR) rotary brake. Due to the complex mechanical structure of the apparatus the considered model contains several simplifications. In the parameter estimation process the grey-box method was used, while the process itself was split into two separate steps. In the first step, the parameters of nonlinear model of suspension part are identified and the static profile of the MR damper is experimentally determined. The second step is to estimate parameters of model of wheel-eccentricity part. The comparison of the modelled system trajectories and real-time experiments are presented. The identification results show that the obtained model is accurate and can be successfully applied to simulate the device.
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