Wave Motion Optimization in Periodically Distributed Shunted Piezocomposite Beam Structures

Collet, Manuel; Cunefare, Kenneth A.; Ichchou, Mohamed

doi:10.1177/1045389x08097902

Cited by 61 publications

(77 citation statements)

References 26 publications

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“…Considering onedimensional media, longitudinal wave propagation was firstly analyzed [6,7] and the strategy was then applied to bending waves control [8,9,10]. The classical passive resonant shunts can even be replaced by more broadband active solutions, as amplified resonant shunts [11] or negative capacitance shunts [12,13]. The periodicity of the one-dimensional structures enables the use of the transfer matrix formulation, as proposed by Mead [14] who also gave results about the propagation constants.…”

Section: Introductionmentioning

confidence: 99%

Multimodal vibration damping of a beam with a periodic array of piezoelectric patches connected to a passive electrical network

Lossouarn

Deü

Aucejo

2015

Smart Mater. Struct.

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Abstract. A multimodal damping strategy is implemented by coupling a beam to its analogue electrical network. This network comes from the direct electromechanical analogy applied to a transverse lattice of point masses that represents the discrete model of a beam. The mechanical and electrical structures are connected together through an array of piezoelectric patches. A discrete and a semi-continuous model are proposed to describe the piezoelectric coupling. Both are based on the transfer matrix formulation and consider a finite number of patches. It is shown that a simple coupling condition gives a network that approximates the modal properties of the beam. A multimodal tuned mass effect is then obtained and a wide-band damping is introduced by choosing a suitable positioning for resistors in the network. The strategy and the models are experimentally validated by coupling a free-free beam to a completely passive network. A multimodal vibration reduction is observed, which proves the efficiency of the control solution and its potential in term of practical implementation.

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Section: Introductionmentioning

confidence: 99%

Multimodal vibration damping of a beam with a periodic array of piezoelectric patches connected to a passive electrical network

Lossouarn

Deü

Aucejo

2015

Smart Mater. Struct.

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“…Structures with smart mechanical behavior are most of the time designed for static and low frequency performances (see [1,2,3] among many others). Recently, research activities have been developed to design new multi-functional structures that integrate electro-mechanical systems able to control their vibroacoustic behavior over a wide frequency band [4,5]. However, there is still a lack of studies in open literature related to the medium frequency (MF) optimization of the structural vibration.…”

Section: Introductionmentioning

confidence: 99%

A piezo-shunted kirigami auxetic lattice for adaptive elastic wave filtering

Ouisse

Collet

Scarpa

2016

Smart Mater. Struct.

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Abstract. Tailoring the dynamical behavior of wave-guide structures can provide an efficient and physically elegant approach for optimizing mechanical components with regards to vibroacoustic propagation. Architectured materials as pyramidal core kirigami cells combined with smart systems may represent a promising way to improve the vibroacoustic quality of structural components. This paper describes the design and modelling of a pyramidal core with auxetic (negative Poisson's ratio) characteristics and distributed shunted piezoelectric patches that allow for wave propagation control. The core is produced using a kirigami technique, inspired by the cutting/folding processes of the ancient Japanese art. The kirigami structure has a pyramidal unit cell shape that creates an in-plane negative Poisson's ratio macroscopic behavior. This structure exhibits in-plane elastic properties (Young's and shear modulus) which are higher than the out-of-plane ones, and hence this lattice has very specific properties in terms of wave propagation that are investigated in this work. The short-circuited configuration is first analysed, before using negative capacitance and resistance as a shunt which provides impressive band gaps in the low frequency range. All configurations are investigated by using a full analysis of the Brillouin zone, rendering possible the deep understanding of the dynamical properties of the smart lattice. The results are presented in terms of dispersion and directivity diagrams, and the smart lattice shows quite interesting properties for the adaptive filtering of elastic waves at low frequencies bandwidths.

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“…The piezoelectric patches transform mechanical energy of the vibrating structure into electrical energy, which is then dissipated into the form of Joule heat to provide electrical damping to the structure by the shunt circuits. Several shunt circuits can be considered: the classical R-and RL-shunts, proposed by Hagood and Von Flotow [3], improvements of those techniques, by the use of several piezoelectric elements [4,5,6], active fiber composites [7] or adaptive shunts [8], and recently semi-passive techniques, commonly known as switch techniques [9,10,11]. Since those techniques are passive (or semi-passive if some electronic components have to be powered), a critical issue is that their performances, in terms of damping efficiency, directly depend on the electromechanical coupling between the host structure and the piezoelectric elements, which has to be maximized.…”

Section: Introductionmentioning

confidence: 99%

New Reduced Order Finite Element Formulations for Vibration Attenuation Using Piezoelectric Shunt Damping

Larbi¹,

Silva²,

Deü³

2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Wave Motion Optimization in Periodically Distributed Shunted Piezocomposite Beam Structures

Cited by 61 publications

References 26 publications

Multimodal vibration damping of a beam with a periodic array of piezoelectric patches connected to a passive electrical network

Multimodal vibration damping of a beam with a periodic array of piezoelectric patches connected to a passive electrical network

A piezo-shunted kirigami auxetic lattice for adaptive elastic wave filtering

New Reduced Order Finite Element Formulations for Vibration Attenuation Using Piezoelectric Shunt Damping

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