Caratterizzazione di un dispositivo magnetoreologico mediante prove sperimentali

The paper approaches the problem of structural control by means of the semi active technology. The experimentation is on a prototype magnetorheological (MR) device, produced by Lord Corporation. Both passive and semi active tests are conducted on the MR damper applying respectively different constant voltage levels and variable voltage levels, by using an optimal control algorithm, to define damper’s mechanical characteristics. An identification is then conducted focusing attention on two models, known from literature: Bingham model and modified Bouc-Wen model. Moreover an estimate of electrical delays for the MR damper is carried out.