Smart panel with sweeping and switching piezoelectric patch vibration absorbers: Experimental results

Bo, Loris Dal; Gardonio, Paolo; Casagrande, Daniel; Saggini, S.

doi:10.1016/j.ymssp.2018.10.024

Cited by 28 publications

(8 citation statements)

References 55 publications

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“…In a recent study, the first six flexural modes of a thin rectangular panel were controlled with five piezoelectric actuators (which were connected to either switching or sweeping time-varying RLC-shunts) [398]. Typically, the shunted piezoelectric actuators are tuned to reduce the vibrations of the plates at specific resonance frequencies, but in their study the R and L values are either commuted between specific values, or varied in a given range, to either switch over to given resonance, or sweep over a range frequency range, to provide broadband control.…”

Section: The Foundational Studiesmentioning

confidence: 99%

Review on the use of piezoelectric materials for active vibration, noise, and flow control

Shivashankar

Gopalakrishnan

2020

Smart Mater. Struct.

146

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Considering the number of applications, and the quantity of research conducted over the past few decades, it would not be an overstatement to label the piezoelectric materials as the cream of the crop of the smart materials. Among the various smart materials, the piezoelectric materials have emerged as the most researched material for practical applications. They owe it to a few key factors like low cost, large frequency bandwidth of operation, availability in many forms, and the simplicity offered in handling and implementation. For piezoelectric materials, from an application standpoint, the area of active control of vibration, noise, and flow, stands, alongside energy harvesting, as the most researched field. Over the past three decades, several authors have used piezoelectric materials as sensors and actuators, to (i) actively control structural vibrations, noise and aeroelastic flutter, (ii) actively reduce buffeting, and (iii) regulate the separation of flows. These studies are spread over several engineering disciplines-starting from large space structures, to civil structures, to helicopters and airplanes, to computer hard disk drives. This review is an attempt to concise the progress made in all these fields by exclusively highlighting the application of the piezoelectric material. The research carried out in the past five years, in the areas of modeling, and optimal positioning of piezoelectric actuators/sensors, for active vibration control (AVC), are covered. Along with this, investigations into different control algorithms, for the piezoelectric based AVC, are also reviewed. Studies reporting the use of piezoelectric modal filtering and self sensing actuators, for AVC, are also surveyed. Additionally, research on semi-AVC techniques like the synchronized switched damping (on elements like resistor, inductor, voltage source, negative capacitor) has also been covered.

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Section: The Foundational Studiesmentioning

confidence: 99%

Review on the use of piezoelectric materials for active vibration, noise, and flow control

Shivashankar

Gopalakrishnan

2020

Smart Mater. Struct.

146

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“…From this result they developed an adaptive shunt using a controller based on the extremum seeking algorithm capable of adjusting online the resistance and inductance emulated by an synthetic impedance to maximize the time-averaged electric power dissipated by the PVA [14]. In addition to adaptive shunts, which are usually based on active circuits, switching shunts based on semi-active circuits such as state switching and synchronized switch damping have also been explored in the literature to improve the PVA robustness [15][16][17][18]. The major drawbacks of switching shunts are the high order frequency signals required to control the switching circuits and the acoustic disturbances during operation [1].…”

Section: Introductionmentioning

confidence: 99%

Self-adaptive piezoelectric vibration absorber with semi-passive tunable resonant shunts

Paixão,

Foltête,

Sadoulet-Reboul

et al. 2024

Journal of Sound and Vibration

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“…Matten et al (2014), Nečásek et al (2016, 2017), and Silva (2018) investigated various electronic architectures to implement a DVA, and discussed how to set up its analog and digital parts. Dal Bo et al (2019) configured a digital unit to realize vibration absorbers with swept and switched characteristics. Recently, this concept was applied to metamaterials by Sugino et al (2018, 2020) and Yi et al (2020), and to nonlinear shunt damping (Raze et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Onset and stabilization of delay-induced instabilities in piezoelectric digital vibration absorbers

Raze

Dietrich

Kerschen

2022

Journal of Intelligent Material Systems and Structures

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The stability of a piezoelectric structure controlled by a digital vibration absorber emulating a shunt circuit is investigated in this work. The formalism of feedback control theory is used to demonstrate that systems with a low electromechanical coupling are prone to delay-induced instabilities entailed by the sampling procedure of the digital unit. An explicit relation is derived between the effective electromechanical coupling factor and the maximum sampling period guaranteeing a stable controlled system. Since this sampling period may be impractically small, a simple modification procedure of the emulated admittance of the shunt circuit is proposed in order to counteract the effect of delays by anticipation. The theoretical developments are experimentally validated on a clamped-free piezoelectric beam.

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Smart panel with sweeping and switching piezoelectric patch vibration absorbers: Experimental results

Cited by 28 publications

References 55 publications

Review on the use of piezoelectric materials for active vibration, noise, and flow control

Review on the use of piezoelectric materials for active vibration, noise, and flow control

Self-adaptive piezoelectric vibration absorber with semi-passive tunable resonant shunts

Onset and stabilization of delay-induced instabilities in piezoelectric digital vibration absorbers

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