Abstract
The aim of this work is the analysis and design of a control system for the reduction of the mechanical vibration and the perceived acoustic noise in a washing machine. The control system is implemented via a semi-active magnetorheological damper located on the suspension that links the drum to the cabinet. The entire design procedure is outlined. The semi-active actuator is accurately described. An experimental protocol is proposed and tested on a sensored machine to highlight the system dynamical behavior. On this basis a simple adaptation control strategy is proposed, designed and tested. Finally some experiments are held in anechoic chamber: the reported results show the effectiveness of the proposed control system.
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