Abstract
The vibration control using piezoelectric elements is an area interesting several industrial sectors. Modal synchronized switch damping on inductor control is a vibration damping technique that combines advantages of passive and active control techniques based on a modal strategy. Within this framework, we propose an improved control technique, which is called modal SSDI-Max. The particularity of this new approach is to maximize the self-generated voltage amplitude by a proper definition of the switch instants (voltage inversion) according to the chosen targeted mode. Following the basic modal synchronized switch damping on inductor technique, the switch is synchronized with the chosen modal coordinate extremum. In the investigated approach, the voltage is increased by waiting for the next voltage extremum following immediately any targeted modal coordinate extremum in a given time window. This chapter presents simulations performed on a model representative of a clamped plate. Damping results are given in the case of multimodal, pulse or noise excitations. The chapter analyses the control time window influence on the damping performance of the system.