Analysis of piezoelectric coupled circular plate

Wang, Q.; Quek, Ser Tong; Sun, C. T.; Liu, X

doi:10.1088/0964-1726/10/2/308

Cited by 181 publications

(105 citation statements)

References 25 publications

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“…The piezoelectric bimorphs driver can be viewed as a circular composite sheet applied with a quantitative load within a fixed radius [15]. …”

Section: Theoretical Analysismentioning

confidence: 99%

A Novel Blood Coagulation Measuring Method Based on the Viscoelasticity of Non-Newtonian Fluid

Kou¹,

Li²,

Yang³

et al. 2017

WJET

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There are complex and perfect coagulation, anticoagulation and fibrinolysis systems in the human body and their fine regulatory mechanisms. Once the coagulation system and its regulatory mechanisms are destroyed, bleeding or thrombosis will occur very soon. In the blood coagulation, the blood viscoelasticity changes. Therefore, the thrombus elasticity measurement technology can be used to continuously monitor the changing blood viscoelasticity in order to study the process of coagulation. The results of the interaction among the various components of the blood can be obtained from coagulation to fibrinolysis by bedside detection. The traditional electromagnetic induction sensors, based on conventional coil inductance, are manufactured complexly, high cost and non-linear. Therefore, this paper proposes a non-Newtonian fluid viscoelasticity measurement method based on the piezoelectric effect. We use the piezoelectric bimorphs with the diameter of 21 mm and the total thickness of 0.38 mm and DSM coupling probes with the length of 3 mm, 5 mm and 7 mm to design the piezoelectric bimorphs driver. The viscoelasticity of different non-Newtonian fluids is tested. The vibration amplitudes of the piezoelectric bimorphs and liquid surfaces range from 0.43 μm to 3.52 μm. Consequently, the feasibility of in vitro detection of thrombus is confirmed in principle and the above scheme is validated theoretically and experimentally, which provides the basis for the measurement of blood viscoelasticity, the in vitro detection of thrombus and the manufacture of blood coagulation instrument.

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“…The piezoelectric bimorphs driver can be viewed as a circular composite sheet applied with a quantitative load within a fixed radius [15]. …”

Section: Theoretical Analysismentioning

confidence: 99%

A Novel Blood Coagulation Measuring Method Based on the Viscoelasticity of Non-Newtonian Fluid

Kou¹,

Li²,

Yang³

et al. 2017

WJET

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“…When the two major surfaces of the piezoelectric layer are held at zero voltage (i.e., closed circuit or boundary conditions), in this study we decided to adopt the following electric potential function which is appropriate for the proposed system (Wang et al, 2001):…”

Section: Basic Equations Of Fg Sandwich Circular Plate With Piezoelecmentioning

confidence: 99%

“…The components of electric field intensity E and electric flux density D is written as (Wang et al, 2001) 2 2 1 1 1…”

Section: Basic Equations Of Fg Sandwich Circular Plate With Piezoelecmentioning

confidence: 99%

“…Also Ebrahimi et al (2009) suggested an analytical solution to analysis of smart moderately thick shear deformable and circular FG plate based on the Mindlin's plate theory. Wang and Quek (2001) studied free vibration of a circular plate surface bonded by two piezoelectric layers, based on the Kirchhoff theory. They have shown the mode shape of the electric potential obtained from free vibration analysis is generally to be non-uniform in the radial direction in contrast to what is commonly assumed.…”

Section: Introductionmentioning

confidence: 99%

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Vibrational response of functionally graded circular plate integrated with piezoelectric layers: An exact solution

Jandaghian¹,

Jafari²,

Rahmani

2014

10.5267/j.esm

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In this paper, harmonic forced vibration of circular functionally graded plate integrated with two uniformly distributed actuator faces made of piezoelectric material is studied. The material properties of the functionally graded substrate layers are assumed to be graded in the thickness direction according to the power-law distribution, also the distribution of electric potential field along the thickness direction of piezoelectric layers is modeled by a quadratic function. The governing equations are solved for simply supported boundary condition of the sandwich circular plate and the solutions are presented by elementary Bessel functions. The performance of the present model is compared with that of finite element analyses as well as other available literature by the presentation of comparative results obtained for several examples encompassing different power indexes and vibration modes. The results show that thickness of piezoelectric layer and changing the power index in FG material has a significant influence on the deflection and natural frequencies of system.

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“…Overtone vibration modes were evaluated using FEM. The free vibration analysis of circular bimorph plate under various boundary conditions was presented in (Wang et al, 2001), where all bimorph layers are of the same diameter. Dynamic properties were mentioned only as additional remarks to the static solutions without any detailed analysis in the above mentioned publications.…”

Section: Introductionmentioning

confidence: 99%

Spectral Properties of Circular Piezoelectric Unimorphs

Pustka¹,

Půst²

2017

Archives of Acoustics

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The piezoelectric unimorphs are essential resonant components of many oscillating systems including electroacoustic devices. The unimorph spectral properties are namely dependent on geometric dimensions, applied materials and mounting. Preliminary dimensioning and optimization of unimorph shape are usually carried out prior to comprehensive design work mostly based on finite element method. Simple analytical model is a suitable tool for initial design phase. This paper presents a derivation of calculation model describing natural vibrations of a circular unimorph with the piezoelectric layer diameter smaller than the elastic layer diameter. The system of equations with closed-form solution is instrumental to calculation of resonant frequencies and mode shapes for unimorphs with clamped, simply supported and free circumference. The theoretical results are compared with vibration velocity measurement of clamped unimorph sample in a wide frequency range. Analytical model derived in this paper is used to assess the effect of the thickness tolerance on unimorph resonant frequencies.

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Analysis of piezoelectric coupled circular plate

Cited by 181 publications

References 25 publications

A Novel Blood Coagulation Measuring Method Based on the Viscoelasticity of Non-Newtonian Fluid

A Novel Blood Coagulation Measuring Method Based on the Viscoelasticity of Non-Newtonian Fluid

Vibrational response of functionally graded circular plate integrated with piezoelectric layers: An exact solution

Spectral Properties of Circular Piezoelectric Unimorphs

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