An innovative piezoelectric energy harvester using clamped–clamped beam with proof mass for WSN applications

Damya, Amin; Sani, Ebrahim Abbaspour; Rezazadeh, Ghader

doi:10.1007/s00542-018-3890-6

Cited by 14 publications

(7 citation statements)

References 21 publications

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“…In the simulation results, the amplitude of output voltage is around 3.67 Volt, and the instantaneous power output is 2.7 μWatt. Figure 3 (a) Experimental setup, in which ○ 1 is the computer,○ 2 is the signal generator, ○ 3 is power amplifier, ○ 4 is vibrating shaker, ○ 5 is the doubly clamped energy harver, ○ 6 is the AC-DC rectifier circuit and ○ 8 is data acquisition card; (b) is the enlarged view of the energy harvesting device.…”

Section: Simulation and Experiments Resultsmentioning

confidence: 99%

“…In their simulation results, it showed highly nonlinear phenomena with an output of 4μW from vibration of 0.5g at 70 Hz. In 2018, Damya [6] fabricated a miniature piezoelectric doubly clamped energy harvester with proof mass loading at beams center using MEMS technology, which can output voltage of 4 V and power of 80μW for wireless sensor nodes. Zhou [7] characterized the length effects of piezoelectric layer on the output performance of doubly clamped beam energy harvester under random excitation.…”

Section: Introductionmentioning

confidence: 99%

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A Flexible Doubly Clamped Beam Energy Harvester with a Standard Rectifier Electric Circuit

Mei

Shi

Chen

et al. 2019

Human Centered Computing

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：While wearable electronics are rapidly developing nowdays, it is greatly limited by the power solutions. Flexible piezoelectric energy harvester presents advantages of high energy density, compact architecture, and easy integration with MEMS, which provides an attractive prospect to power these next generation electronics. Since the flexible devices are usually devised with wavy, island-bridge, and precisely controlled buckling structures, the doubly clamped beam structure for energy harvesting application is analytically studied in this paper. Combine with Euler-Bernoulli beam theory and separation variable method, the analytical expression for output voltage is derived. By conducting the analytical simulation, it is found that the output power is related with the geometry dimensions, external excitation and load resistances. For further validation, experiment is systematically studied. By connecting the standard rectifier electric circuit with the energy harvesting device, it is found that a 0.1uF capacitor can be fully charged in 0.15 s, and the charged output voltage is about 2.5 Volt, which are successfully used for powering LED s.

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Section: Simulation and Experiments Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Flexible Doubly Clamped Beam Energy Harvester with a Standard Rectifier Electric Circuit

Mei

Shi

Chen

et al. 2019

Human Centered Computing

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show abstract

“…Finally, the deflections of both PEH devices at resonance can be approximated using Qa times the static deflections ( ) [27]: The bending moment function for each section of both PEH devices was determined through the Equation (20). The bending moment function for the first section, x (0,L s1 ), and for the second section, x (L s1 ,L s12 ), are given by Equations (21) and (22), respectively:…”

Section: Of 16mentioning

confidence: 99%

“…The PEH devices have emerged in recent years due to the possibility of integration with MEMS [16][17][18]. For instance, several researchers have developed MEMS-based PEH devices for different applications [19][20][21][22]. Lu et al [23] reported a numerical modeling of a PEH cantilever for MEMS applications.…”

Section: Introductionmentioning

confidence: 99%

Electromechanical Modeling of MEMS-Based Piezoelectric Energy Harvesting Devices for Applications in Domestic Washing Machines

et al. 2020

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Microelectromechanical system (MEMS)-based piezoelectric energy harvesting (PEH) devices can convert the mechanical vibrations of their surrounding environment into electrical energy for low-power sensors. This electrical energy is amplified when the operation resonant frequency of the PEH device matches with the vibration frequency of its surrounding environment. We present the electromechanical modeling of two MEMS-based PEH devices to transform the mechanical vibrations of domestic washing machines into electrical energy. These devices have resonant structures with a T shape, which are formed by an array of multilayer beams and a ultraviolet (UV)-resin seismic mass. The first layer is a substrate of polyethylene terephthalate (PET), the second and fourth layers are Al and Pt electrodes, and the third layer is piezoelectric material. Two different types of piezoelectric materials (ZnO and PZT-5A) are considered in the designs of PEH devices. The mechanical behavior of each PEH device is obtained using analytical models based on the Rayleigh–Ritz and Macaulay methods, as well as the Euler–Bernoulli beam theory. In addition, finite element method (FEM) models are developed to predict the electromechanical response of the PEH devices. The results of the mechanical behavior of these devices obtained with the analytical models agree well with those of the FEM models. The PEH devices of ZnO and PZT-5A can generate up to 1.97 and 1.35 µW with voltages of 545.32 and 45.10 mV, and load resistances of 151.12 and 1.5 kΩ, respectively. These PEH devices could supply power to internet of things (IoT) sensors of domestic washing machines.

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“…The proposed nanogenerator has a double-clamped beam with five cross-sections, as shown in Figure 2 a,b. A double-clamped beam with a central seismic mass is selected to take advantage of two stress concentration surfaces generated near both fixed ends of the beam [ 42 ], in where the piezoelectric layers are located. In addition, the double-clamped beams can provide a better stable and reliable operation than cantilevered structures [ 43 ].…”

Section: Analytical Modeling Of the Nanogeneratormentioning

confidence: 99%

Electromechanical Modeling of Vibration-Based Piezoelectric Nanogenerator with Multilayered Cross-Section for Low-Power Consumption Devices

et al. 2020

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Piezoelectric nanogenerators can convert energy from ambient vibrations into electrical energy. In the future, these nanogenerators could substitute conventional electrochemical batteries to supply electrical energy to consumer electronics. The optimal design of nanogenerators is fundamental in order to achieve their best electromechanical behavior. We present the analytical electromechanical modeling of a vibration-based piezoelectric nanogenerator composed of a double-clamped beam with five multilayered cross-sections. This nanogenerator design has a central seismic mass (910 μm thickness) and substrate (125 μm thickness) of polyethylene terephthalate (PET) as well as a zinc oxide film (100 nm thickness) at the bottom of each end. The zinc oxide (ZnO) films have two aluminum electrodes (100 nm thickness) through which the generated electrical energy is extracted. The analytical electromechanical modeling is based on the Rayleigh method, Euler–Bernoulli beam theory and Macaulay method. In addition, finite element method (FEM) models are developed to estimate the electromechanical behavior of the nanogenerator. These FEM models consider air damping at atmospheric pressure and optimum load resistance. The analytical modeling results agree well with respect to those of FEM models. For applications under accelerations in y-direction of 2.50 m/s2 and an optimal load resistance of 32,458 Ω, the maximum output power and output power density of the nanogenerator at resonance (119.9 Hz) are 50.44 μW and 82.36 W/m3, respectively. This nanogenerator could be used to convert the ambient mechanical vibrations into electrical energy and supply low-power consumption devices.

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An innovative piezoelectric energy harvester using clamped–clamped beam with proof mass for WSN applications

Cited by 14 publications

References 21 publications

A Flexible Doubly Clamped Beam Energy Harvester with a Standard Rectifier Electric Circuit

A Flexible Doubly Clamped Beam Energy Harvester with a Standard Rectifier Electric Circuit

Electromechanical Modeling of MEMS-Based Piezoelectric Energy Harvesting Devices for Applications in Domestic Washing Machines

Electromechanical Modeling of Vibration-Based Piezoelectric Nanogenerator with Multilayered Cross-Section for Low-Power Consumption Devices

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