Design tool for elementary shunts connected to piezoelectric patches set to control multi-resonant flexural vibrations

This paper proposes a new tool for the selection of optimal elementary shunts connected to piezoelectric patches, which are bonded on thin structures control multi-resonant flexural vibration produced by broadband stochastic excitations. More specifically, study introduces procedure identification simple shunt architectures composed small-number low-value RLC elements, yet produce significant effects. The challenge identify beneficial lies in fact that numerous candidate circuits exist, and this number grows exponentially with increase allowed electrical components. To end, design optimisation is proposed, enables characterisation all networks pre-defined elements having given range values. refers practical model-problem, encompasses plate equipped five patches shunts. A trial illustrated, where used find suitable resonant responses 6 modes frequency band comprised between 20 150 Hz. full set 4 systematically searched two identified. physics performance these contrasted those classical single-resonant shows generate 16 dB reductions target responses, comparable would be six-branches encompassing 18 elements. Moreover, it combined absorption damping effects such they can provide presence variations response structure too.