On the electromechanics of a piezoelectric transducer using a bimorph cantilever undergoing asymmetric sensing and actuation

Branco, P. J. Costa; Dente, J. A.

doi:10.1088/0964-1726/13/4/001

Cited by 27 publications

(16 citation statements)

References 16 publications

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“…In early works actuating [7] and sensing [8] functions of piezoelectric materials have been studied separately. The current trend is toward the formulation of completely coupled models taking into account the two-fold electromechanical coupling and introducing both electric and mechanical degrees of freedom [9][10][11][12][13][14]. Coupled electromechanical modelling is necessary for several reasons.…”

Section: Introductionmentioning

confidence: 99%

Extension of the Euler–Bernoulli model of piezoelectric laminates to include 3D effects via a mixed approach

Maurini

Pouget

Dell’Isola

2006

Computers & Structures

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In this paper a coupled Euler-Bernoulli model of laminated piezoelectric beams is proposed. It is characterized by accounting for the influence of 3D distribution of mechanical stresses and strains through corrected electromechanical constitutive equations. In particular, the hypothesis of vanishing transverse (width direction) normal stress typical of standard beam models is weakened by imposing vanishing stress resultants. This integral condition is enforced by adopting a mixed variational principle and Lagrange multiplier method. Explicit expressions for the beam constitutive coefficients are given and the sandwich and bimorph piezoelectric benders are studied in details. The model is assessed through comparisons with standard models and 3D finite element results, showing an important enhancement of standard beam theories.

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Section: Introductionmentioning

confidence: 99%

Extension of the Euler–Bernoulli model of piezoelectric laminates to include 3D effects via a mixed approach

Maurini

Pouget

Dell’Isola

2006

Computers & Structures

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“…In macroscale applications, several analytical models for the three layered laminate structure with a piezoelectric layer as an actuator, an elastic material layer and a second piezoelectric layer as a sensor have been developed, which include the studies of Costa Branco and Dente (2004) and Du et al (2003). All of their models ignored the influence of the electrode layers.…”

Section: Introductionmentioning

confidence: 99%

Theoretical analysis of the sensing and actuating effects of piezoelectric multimorph cantilevers

et al. 2005

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The paper presents the modeling of two types of piezoelectric microcantilevers, the two-layer and twosegment piezoelectric cantilevers, in which the two piezoelectric parts perform sensor and actuator functions, respectively. An analytic model is proposed to evaluate the sensing and actuating effects of multiporph microcantilevers formed of several layers or segments of piezoelectric materials. The analytical model is used to analyze the tip deflection of the cantilever and the piezoelectric charge generated on the sensor element as a function of the microcantilever geometry. The cantilevers of sensing and actuation are compared for the different working situations of the two-layer and two-segment cantilevers. The theoretical results can be used to optimize the design of the piezoelectric cantilever structures.

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“…In recent decades, the multilayered piezoelectric structures have been developed for use in different fields of engineering applications, such as sensors and actuators, health monitoring and vibration control [1][2][3]. Because of material properties of these structures at the layers interfaces, some problems such as residual stresses and delamination may occur in high temperature environments [4].…”

Section: Introductionmentioning

confidence: 99%

Optimum response of functionally graded piezoelectric plates in thermal environments

Nourmohammadi

Behjat

2017

Materials Science-Poland

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In this article, the static response of the functionally graded piezoelectric (FGP) plates with piezoelectric layers (sandwich FGPM) is studied based on the first order shear deformation plate theory. The plate is under mechanical, electrical and thermal loadings and finite element method is employed to obtain the solution of the equation. All mechanical, thermal and piezoelectric properties, except Poisson ratio, obey the power law distribution through the thickness. By solving the governing equation, optimum value of power law index is investigated in each type of loading. The effects of different volume fraction index, layer arrangements, various boundary conditions and different loading types, are studied on the deflection of FGPM plate. It is inferred that, the correlations between the deflection, power law index and layer arrangement are completely different in the mechanical and thermal loading and the optimum value of the power law index should be selected in each case separately. This optimum values can be used as a design criterion to build a reliable sensors and actuators in thermal environments.

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On the electromechanics of a piezoelectric transducer using a bimorph cantilever undergoing asymmetric sensing and actuation

Cited by 27 publications

References 16 publications

Extension of the Euler–Bernoulli model of piezoelectric laminates to include 3D effects via a mixed approach

Extension of the Euler–Bernoulli model of piezoelectric laminates to include 3D effects via a mixed approach

Theoretical analysis of the sensing and actuating effects of piezoelectric multimorph cantilevers

Optimum response of functionally graded piezoelectric plates in thermal environments

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