This paper addresses the use of piezoelectric shunt for suppressing vibrations. The focus of the work is on the coupling between the classical resonant shunt and negative capacitances. General formulations are provided for the tuning of the elements composing the shunt impedance and the consequent vibration attenuation performances are investigated. Moreover, the paper explains which issues could be encountered in practical applications and how to overcome them. The theoretical results are validated by means of an experimental campaign.
The use of negative capacitances to improve the vibration attenuation of piezoelectric resonant shunt
M. Berardengo;
2019-01-01
Abstract
This paper addresses the use of piezoelectric shunt for suppressing vibrations. The focus of the work is on the coupling between the classical resonant shunt and negative capacitances. General formulations are provided for the tuning of the elements composing the shunt impedance and the consequent vibration attenuation performances are investigated. Moreover, the paper explains which issues could be encountered in practical applications and how to overcome them. The theoretical results are validated by means of an experimental campaign.
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