Guidelines for the layout and tuning of piezoelectric resonant shunt with negative capacitances in terms of dynamic compliance, mobility and accelerance
| Autor: | Olivier Thomas, Stefano Manzoni, Marta Berardengo, Marcello Vanali |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Shunt impedance Acoustics vibration control Vibration control Piezoelectric shunt 02 engineering and technology Vibration attenuation Damping 01 natural sciences Mécanique: Vibrations [Sciences de l'ingénieur] 0203 mechanical engineering Negative capacitance 0103 physical sciences resonant shunt General Materials Science 010301 acoustics Resonant shunt damping Electronique [Sciences de l'ingénieur] Mechanical Engineering negative capacitance Piezoelectricity 020303 mechanical engineering & transports Dynamic compliance Shunt (electrical) Negative impedance converter |
| Zdroj: | Journal of Intelligent Material Systems and Structures. 32:2092-2107 |
| ISSN: | 1530-8138 1045-389X |
| DOI: | 10.1177/1045389x20986991 |
| Popis: | This paper addresses the vibration attenuation provided by the resonant piezoelectric shunt enhanced by means of negative capacitances. The shunt impedance is composed by one or two negative capacitances, a resistance and an inductance. It is shown that closed analytical formulations, common to all the possible connections of the negative capacitances, can be derived for the tuning of the circuit components and for the prediction of the attenuation in terms of dynamic compliance, mobility and accelerance. The paper also compares the attenuation performance provided by the two possible layouts for the electrical link between the resistance and the inductance, that are series and parallel. Furthermore, this work evidences which shunt configurations offer advantages in terms of practical implementation and the benefits provided by the use of negative capacitances in the shunt circuit. In the last part of the paper, guidelines for the use of resonant shunt are given to the reader and, finally, the theoretical results are validated by means of an experimental campaign showing that it is possible to cancel the resonance on which the resonant shunt is targeted. |
| Databáze: | OpenAIRE |
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