Scattering and active acoustic control from a submerged piezoelectric-coupled orthotropic hollow cylinder

Hasheminejad, Seyyed M.; Rajabi, Majid

doi:10.1016/j.jsv.2008.04.005

Cited by 17 publications

(8 citation statements)

References 37 publications

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“…Over the past few decades, considerable attention has been devoted to thin structures that combine piezoelectric material layers or patches, due to their many potential applications. The resulting smart materials and structures are used nowadays in vibration control [1][2][3], shape control [4][5][6], noise and acoustic control [7][8][9][10] as well as health monitoring of civil infrastructures [11][12][13]. Predicting the behavior of such materials and structures is therefore crucial for their proper implementation.…”

Section: Introductionmentioning

confidence: 99%

Linear and quadratic solid–shell finite elements SHB8PSE and SHB20E for the modeling of piezoelectric sandwich structures

Kpeky

Abed‐Meraim

Boudaoud

et al. 2017

Mechanics of Advanced Materials and Structures

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In this paper, hexahedral piezoelectric solid-shell finite element formulations, with linear and quadratic interpolation, denoted by SHB8PSE and SHB20E, respectively, are proposed for the modeling of piezoelectric sandwich structures. Compared to conventional solid and shell elements, the solid-shell concept reveals to be very attractive, due to a number of well-established advantages and computational capabilities. More specifically, the present study is devoted to the modeling and analysis of multilayer structures that incorporate piezoelectric materials in the form of layers or patches. The interest in this solid-shell approach is shown through a set of selective and representative benchmark problems. These include numerical tests applied to various configurations of beam, plate and shell structures, both in static and vibration analysis. The results yielded by the proposed formulations are compared with those given by state-of-the-art piezoelectric elements available in ABAQUS; in particular, the C3D20E quadratic hexahedral finite element with piezoelectric degrees of freedom.

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Section: Introductionmentioning

confidence: 99%

Linear and quadratic solid–shell finite elements SHB8PSE and SHB20E for the modeling of piezoelectric sandwich structures

Kpeky

Abed‐Meraim

Boudaoud

et al. 2017

Mechanics of Advanced Materials and Structures

View full text Add to dashboard Cite

show abstract

“…In recent years, the so-called smart materials have aroused much interest in various fields and industrial applications. These smart materials and the associated devices are nowadays used in vibration control [1][2][3], shape control [4][5][6], noise and acoustic control [7][8][9][10] as well as in health monitoring of civil infrastructures [11][12][13]. Predicting the behavior of such materials and structures is therefore crucial for their proper implementation.…”

Section: Introductionmentioning

confidence: 99%

New linear and quadratic prismatic piezoelectric solid–shell finite elements

Kpeky

Abed‐Meraim

Daya

2018

Applied Mathematics and Computation

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In this work, we propose two prismatic piezoelectric solid-shell elements based on fully three-dimensional kinematics. For this purpose, we perform electromechanical coupling, which consists in adding an electrical degree of freedom to each node of the purely mechanics-based versions of these elements. To increase efficiency, these geometrically three-dimensional elements are provided with some desirable shell features, such as a special direction, designated as the thickness, along which the integration points are located, while adopting a reduced integration rule in the other directions. To assess the performance of the proposed piezoelectric solid-shell elements, a variety of benchmark tests, both in static and vibration analysis, have been performed on multilayer structures ranging from simple beams to more complex structures involving geometric nonlinearities. Compared to conventional finite elements with the same kinematics, the evaluation results allow highlighting the higher performance of the newly developed solid-shell technology.

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“…missing some natural frequencies/mode shapes, controllability/observability problems) could arise, especially if these devices are mounted at modal nodes of the distributed parameter structure. Extensive studies have recently been focused on the modeling, analysis, and control of acoustic radiation from (transmission through) vibrating fluid-loaded canonical structures such as plates (Hasheminejad and Keshavarzpour, 2013; Li, 2011) and cylindrical panels/shells (Babaev et al, 2010; Cao et al, 2012; Hasheminejad and Alaei-Varnosfaderani, 2012; Hasheminejad and Rajabi, 2008; Kwak et al, 2012). Comparatively very few investigators have considered the spherical shell geometry.…”

Section: Introductionmentioning

confidence: 99%

Active sound radiation control of a submerged piezocomposite hollow sphere

Hasheminejad

Gudarzi

2014

Journal of Intelligent Material Systems and Structures

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A spatial state-space approach based on the linear three-dimensional exact piezoelasticity theory along with the Helmholtz equations for the internal/external acoustic domains are employed to describe the coupled vibroacoustic response of an arbitrarily thick, spherically isotropic, functionally graded, radially polarized piezolaminated hollow sphere, immersed in and filled with ideal compressible fluids, and under the actions of arbitrary (non-axisymmetric) distributed time-harmonic transverse mechanical excitations at its inner and/or outer boundaries. A frequency domain subspace–based identification technique is applied to estimate the coupled fluid-structure dynamics of the system in the controller design stage. Subsequently, a standard linear quadratic Gaussian optimal controller is synthesized and simulated based on the identified model, and the optimal control input voltages for suppressing the sensor output voltage (total radiated power) of the submerged sphere are calculated for selected weighting parameters associated with the system response and control input. Numerical simulations establish the effectiveness of the selected (partial/full) sensor/actuator configuration in conjunction with the adopted control strategy for attenuating the predicted sound radiation response of an air-filled, water-submerged, sandwich piezocomposite (PZT4/steel/PZT4) sphere, in both frequency and time domains. Also, the trade-off between dynamic performance and control effort penalty is examined for impulsive and Gaussian random external mechanical disturbances. Furthermore, the effect of piezoelectric material gradient variation on sound radiation control performance of the smart piezocomposite structure is briefly discussed. The validity of the acousto-elastic model is demonstrated by use of a commercial finite element package as well as by comparison with the data available in the literature.

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Scattering and active acoustic control from a submerged piezoelectric-coupled orthotropic hollow cylinder

Cited by 17 publications

References 37 publications

Linear and quadratic solid–shell finite elements SHB8PSE and SHB20E for the modeling of piezoelectric sandwich structures

Linear and quadratic solid–shell finite elements SHB8PSE and SHB20E for the modeling of piezoelectric sandwich structures

New linear and quadratic prismatic piezoelectric solid–shell finite elements

Active sound radiation control of a submerged piezocomposite hollow sphere

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