Shunts vs networks: tuning and comparison of centralized and decentralized piezoelectric vibration absorbers

Raze, Ghislain; Dietrich, Jennifer; Lossouarn, Boris; Kerschen, Gaëtan

doi:10.1088/1361-665x/ac92b0

Cited by 7 publications

(3 citation statements)

References 44 publications

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“…Adding arrays of interconnected piezoelectric transducers have been shown to increase effciency of the control from the implementation of multiple electrical resonance [21] and therefore, improving broadband damping as originally demonstrated by dell'Isola et al [22][23][24]. This solution also reduced the inductance requirements of the electrical network [25].…”

Section: Introductionmentioning

confidence: 97%

Analogous piezoelectric network for multimodal vibration attenuation of a thin circular ring

Luo,

Lossouarn,

Erturk

2023

Smart Mater. Struct.

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Structural vibrations can be reduced by coupling to a piezoelectric electrical network that exhibits analogous modal properties of the structure. This paper considers the multimodal vibration damping of a thin circular ring using this method. The electrical network is derived by applying a finite difference model to the governing equations of motion for a segment of a thin curved beam. An electromechanical analogy is then applied to the physical constants. The resulting passive electrical network unit cell is a topology of capacitors, inductors, and transformers analogous to the dynamics of a segment of curved beam. The electrical network for a curved beam is simplified by considering an inextensional assumption and combining edge components in adjacent unit cells. The resulting simplified discrete network for a curved beam segment is assembled into a complete network for a circular ring. The electrical network for a circular ring displays modal properties similar to its mechanical analogue in both the spatial and frequency domains. As a result of the analogous modal properties across the frequency spectrum, it is shown that the network can be used to achieve multimodal vibration attenuation across a large frequency spectrum. Piezoelectric patches are used to couple the two domains. Numerical simulation of the coupled system demonstrates the effectiveness of the broadband damping effects from the analogous network. Notably, this research establishes a novelty in the field, as it not only introduces experimental validation of curved beam analogues, but also extends the investigation to encompass the coupling between a circular ring and its piezoelectric electrical network counterpart. Further experimental network optimization demonstrate the possibility of tuning the network to adapt to an imperfect mechanical ring.

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Section: Introductionmentioning

confidence: 97%

Analogous piezoelectric network for multimodal vibration attenuation of a thin circular ring

Luo,

Lossouarn,

Erturk

2023

Smart Mater. Struct.

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“…Many studies investigated the enhancement of the basic resistive or resonant shunts [7][8][9], among others, in terms of broadband/multimodal attenuation [10][11][12], digital implementation [13], artificial increasing of coupling factor using negative capacitances [14,15], adaptivity using pulse width modulation [16] and experimental concept for high voltage in the shunt [17].…”

Section: Introductionmentioning

confidence: 99%

Saturation correction for a piezoelectric shunt absorber based on 2:1 internal resonance using a cubic nonlinearity

Shami

Giraud-Audine

Thomas

2023

Smart Mater. Struct.

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In this study, we present a theoretical and experimental analysis of an antiresonance detuning correction for a nonlinear piezoelectric shunt absorber based on a two-to-one internal resonance. Thanks to this purely nonlinear feature, the oscillations of the primary system become independent of the forcing at a particular antiresonance frequency, thus creating an eﬃcient reduction of the vibration. Past works of the literature present the design of the piezoelectric shunt and show that it is subjected to a softening behavior that detunes the antiresonance frequency as a function of the amplitude and thus degrades the performance. It is also shown that this softening behavior is caused by some non-resonant terms present in the equations, linked to the piezoelectric coupling. To counteract this undesired eﬀect, we propose in this work to add a cubic nonlinearity in the shunt circuit, in addition to the quadratic one already present. Its tuning is based on a normal form analysis already published, which shows how cubic nonlinearities can cancel the eﬀect of quadratic non-resonant terms. The present article focuses on the experimental proof of concept of this antiresonance detuning correction as well as the analysis of its range of validity. It is applied to the damping of the ﬁrst bending mode of a hydrodynamic foil structure.

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“…The use of piezoelectric shunt is a widely used approach for reducing vibrations (e.g., [1,2,3,4,5]). It consists in connecting a proper impedance (shunt impedance) to the terminals of a piezoelectric element [6,7,8], particularly, a piezoelectric-bender is considered here.…”

Section: Introductionmentioning

confidence: 99%

Strategies for Reducing Operational Amplifier Outputs in Piezoelectric Shunt With Negative Capacitance

Berardengo,

Manzoni,

Thomas

et al. 2023

10th ECCOMAS Thematic Conference on Smart Structures and Materials

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Shunts vs networks: tuning and comparison of centralized and decentralized piezoelectric vibration absorbers

Cited by 7 publications

References 44 publications

Analogous piezoelectric network for multimodal vibration attenuation of a thin circular ring

Analogous piezoelectric network for multimodal vibration attenuation of a thin circular ring

Saturation correction for a piezoelectric shunt absorber based on 2:1 internal resonance using a cubic nonlinearity

Strategies for Reducing Operational Amplifier Outputs in Piezoelectric Shunt With Negative Capacitance

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