Modeling and experimental validation of a buckled compressive-mode piezoelectric energy harvester

Li, Hai Tao; Qin, Wei; Zu, Jean W.; Yang, Zhengbao

doi:10.1007/s11071-018-4160-y

Cited by 45 publications

(12 citation statements)

References 44 publications

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“…As a typical nonlinear system, the bi-stable energy harvester has received much attention because of its broadband property and high voltage output upon the occurrence of snap-through [18][19][20][21][22][23][24]. Stanton et al [25] proposed a bi-stable energy harvester based on the magnetic repulsion and characterize its complex nonlinear dynamics behaviors.…”

Section: Introductionmentioning

confidence: 99%

Harvesting Vibration Energy and Wind Energy by a Bi-stable Harvester: Modeling and Experiments

Dong

Cao

et al. 2021

Preprint

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In realistic environments, there often appears the concurrence of base excitation and blowing wind. Harvesting both vibration energy and wind energy by an unique harvester is attractive. In this paper, we proposed a harvester integrating bi-stability and galloping to realize this aim. The nonlinear dynamical model of the bistable energy harvester under concurrent wind and base excitations is established. The galloping effects on the responses are explored based on the established model, for both harmonic and random excitations. The corresponding experiments are conducted to validate the theoretical prediction. The experimental results are consistent with the simulation results. At a wind speed of U=2 m/s, the bandwidth of large-amplitude inter-well motion of the bi-stable energy harvester is extended by about 18.5%. The critical random excitation level for snap-through is reduced by 58% and the total output voltage at random excitation is increased by 53.4%. Thus, the harvester could scavenge the wind and vibration energies at a high efficiency. These conclusions could be helpful for improving the harvesting efficiency in the real environment.

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Section: Introductionmentioning

confidence: 99%

Harvesting Vibration Energy and Wind Energy by a Bi-stable Harvester: Modeling and Experiments

Dong

Cao

et al. 2021

Preprint

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“…This harvesting mechanism is dependent on the medium of interaction [89][90][91][92]; that is, the transformation of kinetic energy to the PZT transducer [93][94][95]. These media may be mechanical vibrations [51,96,97], fluid-structure interaction [98,99], and thermal interaction [100,101].…”

Section: Introductionmentioning

confidence: 99%

A Review on Mechanisms for Piezoelectric-Based Energy Harvesters

2018

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From last few decades, piezoelectric materials have played a vital role as a mechanism of energy harvesting, as they have the tendency to absorb energy from the environment and transform it to electrical energy that can be used to drive electronic devices directly or indirectly. The power of electronic circuits has been cut down to nano or micro watts, which leads towards the development of self-designed piezoelectric transducers that can overcome power generation problems and can be self-powered. Moreover, piezoelectric energy harvesters (PEHs) can reduce the need for batteries, resulting in optimization of the weight of structures. These mechanisms are of great interest for many researchers, as piezoelectric transducers are capable of generating electric voltage in response to thermal, electrical, mechanical and electromagnetic input. In this review paper, Fluid Structure Interaction-based, human-based, and vibration-based energy harvesting mechanisms were studied. Moreover, qualitative and quantitative analysis of existing PEH mechanisms has been carried out.

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“…The kinetic energy can only be scavenged near its intrinsic resonance frequency whereas the ambient vibrations usually have broadband frequency spectra or multiple peaks. To address this limitation, numerous approaches for frequency broadening have been proposed, including multimodal energy harvesting [27][28][29], resonance tuning [30] and other nonlinear techniques [31][32][33]. Multimodal energy harvesters are supposed to be more effective with matched multiple frequencies to better harness kinetic energy in these scenarios.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric ZnO thin films for 2DOF MEMS vibrational energy harvesting

Tao

Tang

et al. 2019

Surface and Coatings Technology

115

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Zinc oxide (ZnO) is an environmental-friendly semiconducting, piezoelectric and nonferroelectric material, and plays an essential role for applications in microelectromechanical systems (MEMS). In this work, a fully integrated two-degree-of-freedom (2DOF) MEMS piezoelectric vibration energy harvester (p-VEH) was designed and fabricated using ZnO thin films for converting kinetic energy into electrical energy. The 2DOF energy harvesting system comprises two subsystems: the primary one for energy conversion and the auxiliary one for frequency adjustment. Piezoelectric ZnO thin film was deposited using a radio-frequency magnetron sputtering method onto the primary subsystem for energy conversion from mechanical vibration to electricity. Dynamic performance of the 2DOF resonant system was analyzed and optimized using a lumped parameter model. Two closely located but separated peaks were achieved by precisely adjusting mass ratio and frequency ratio of the resonant systems. The 2DOF MEMS p-VEH chip was fabricated through a combination of laminated surface micromachining process, double-side alignment and bulk micromachining process. When the fabricated prototype was subjected to an excitation acceleration of 0.5 g, two close resonant peaks at 403.8 and 489.9 Hz with comparable voltages of 10 and 15 mV were obtained, respectively.

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Modeling and experimental validation of a buckled compressive-mode piezoelectric energy harvester

Cited by 45 publications

References 44 publications

Harvesting Vibration Energy and Wind Energy by a Bi-stable Harvester: Modeling and Experiments

Harvesting Vibration Energy and Wind Energy by a Bi-stable Harvester: Modeling and Experiments

A Review on Mechanisms for Piezoelectric-Based Energy Harvesters

Piezoelectric ZnO thin films for 2DOF MEMS vibrational energy harvesting

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