Linear multi-degree-of-freedom low-frequency piezoelectric vibration energy harvester

Wang, Yanfen; Luo, Cheng; Li, Pengwei

doi:10.1080/00150193.2016.1233029

Cited by 12 publications

(4 citation statements)

References 30 publications

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“…Concentrated mass is added in the end of the classical cantilever beam piezoelectric vibration energy harvester structure in order to reduce the modal frequency to match the environment vibration frequency. On this basis, some improvements of the structure have been proposed by some scholars to broaden the harvesting frequency band [32][33][34][35][36][37][38][39][40]. But there are also some shortcomings, such as the inability to achieve wide frequency band harvesting and multi-directional harvesting at the same time.…”

Section: Structural Model and Working Principle Of Multi-layer Z-type...mentioning

confidence: 99%

“…For this reason, the structure of the harvester has been improved by terms of the nonlinearity of additional mass and the introduction of nonlinear magnetic force. Aiming at the above shortcomings of linear mass vibration generator, the structure of nonlinear mass multimode vibration generator is proposed by Wong [32], and it is applied to capacitive vibration generator. The experimental results show that the nonlinearization of mass block broadens the acquisition frequency band to a certain extent.…”

Section: Introductionmentioning

confidence: 99%

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Investigation on the design and application of 3-dimensional wide-band piezoelectric energy harvester for low amplitude vibration sources

Chen

Wei

et al. 2019

Smart Mater. Struct.

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In order to realize 3-dimensional, wide-band vibration energy harvesting in low-frequency and low-amplitude environments, a multi-layer Z-type beam piezoelectric harvester structure is proposed. Nonlinear mass and instabilities of horizontal and longitudinal are introduced by the multi-layer Z-type beam structure. Simulation and experiment results show that when the number of beam layer is 7 and excitation intensity is 0.8 g, there are more than 4 voltage peaks within 5–40 Hz, the maximum voltage is above 16 V, the maximum output power can reach 180 μW, which greatly widens harvesting frequency band. When exciting in horizontal and vertical directions, the maximum voltages peaks are all above 10 V, the number of voltage peaks are all above 5, maximum output powers can reach 108 μW and 53 μW respectively, by which 3-dimensional energy harvesting is verified. Next, the performances of arrays are studied. When the arrays number is 12, excitation intensity reduces to 0.2 g, nearly 90% of the voltage response amplitudes for parallel arrays within 15–40 Hz are above 4 V, almost all the voltage response amplitudes for series arrays are above 5 V within 17–40 Hz, even response amplitudes are all above 10 V within 23–33 Hz. The maximum output power generated by parallel arrays is up to 864.5 μW. So, wide-band 3-dimensional vibration energy harvesting for low amplitude environment is realized by multi-layer Z-type vibration energy harvester. Finally, the feasibility that wireless switch could be powered by the multi-layer Z-type vibration energy harvester parallel arrays from low-frequency and low-amplitude environment is verified.

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Section: Structural Model and Working Principle Of Multi-layer Z-type...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation on the design and application of 3-dimensional wide-band piezoelectric energy harvester for low amplitude vibration sources

Chen

Wei

et al. 2019

Smart Mater. Struct.

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“…Similarly, there are also researches on L-shaped harvesters used for nonlinear vibration energy harvesting (Chen et al, 2016; Liu et al, 2017; Nie et al 2019; Samandari and Cigeroglu, 2016; Wei et al, 2018; Yao et al, 2018). Similarly, Wang et al (2016) also studied the L-shaped harvester which performed high-efficiency energy harvesting under multi-source broadband excitations. To study the structural characteristics of the more general two-stage cantilever-based harvester, Zhao et al (2018) proposed a vibration energy harvester based on the uncrystallised traditional piezoelectric V-shaped cantilever structure, and used the Euler-Bernoulli beam theory and piezoelectric equations to establish the electromechanical coupling model.…”

Section: Introductionmentioning

confidence: 99%

Design, modeling, and experiment of a multi-bifurcated cantilever piezoelectric energy harvester

Yang

Chen

et al. 2021

Journal of Intelligent Material Systems and Structures

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A multi-bifurcated cantilever piezoelectric energy harvester (BCPEH) is designed and verified to achieve a wide and adjustable response frequency band. The theoretical model is derived based on the Euler-Bernoulli beam theory and continuity boundary conditions to investigate the dynamic response of the BCPEH. The displacement frequency response function and the voltage frequency response function of the BCPEH are deduced based on the Galerkin method, and the theoretical results of a typical multi-bifurcated cantilever piezoelectric energy harvester, the Y-shaped BCPEH, are verified by the finite element method (FEM) and experiments. In addition, by comparing experimental output power of the Y-shaped BCPEH with that of the traditional cantilever-based piezoelectric energy harvester with the same mass of the bifurcated part at the beam-tip, it demonstrates that the Y-shaped BCPEH has a wider operational frequency band. Moreover, it is found that the Y-shaped BCPEH can be designed with an asymmetric configuration to adjust its response frequency distribution. The number of resonant frequencies and the output power of the asymmetric Y-shaped BCPEH are higher than that of the symmetric Y-shaped BCPEH. And the Y-shaped BCPEH has even better performance than L-shaped BCPEH. This study provides a new design concept for enhanced energy harvester.

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“…In the past, few authors had managed to accomplish in developing the actual energy harvesting transducer based on vibration source applying piezoelectric elements for low resonance frequencies [14]. Several techniques were used to enhance the harvested voltage of micro piezoelectric based energy harvesting system at micro power level.…”

Section: Introductionmentioning

confidence: 99%

Modelling of a Low Frequency Based Rectangular Shape Piezoelectric Cantilever Beam for Energy Harvesting Applications

Mohamed¹,

Sarker²,

Mohamed³

2018

IJEECS

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<p>Harvesting few amount of charge from environmental ambient sources namely, wind, thermal, heat, vibration, solar utilizing micro scale energy harvesting devices, offers vast view of powering for numerous portable low power electronic devices. However, power harvesting using piezoelectric crystal from low power ambient source nowdays has increasing popularity with the advantages of low cost, long life time, stability and clean energy. Recent trends have shown that most researchers are interested in designing a low resonance frequency vibration based energy harvesting devices despite of its challenges ahead. In this paper, a low frequency based rectangular shape piezoelectric cantilever beam has been developed for energy harvesting applications. The proposed vibration based low frequency cantilever beam using piezoelectric element has been developed by finite element analysis (FEA) employing COMSOL Multiphysics platform. The main goal of the study is to analyze the outcome of geometric model of a piezoelectric cantilever beam and to calculate the resonance frequency of the structure according to its length. The material of PZT-5H, has been considered to enhance the efficiency of the low frequency based cantilever beam. Finally, the proposed result is compared with other existing works.</p>

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Linear multi-degree-of-freedom low-frequency piezoelectric vibration energy harvester

Cited by 12 publications

References 30 publications

Investigation on the design and application of 3-dimensional wide-band piezoelectric energy harvester for low amplitude vibration sources

Investigation on the design and application of 3-dimensional wide-band piezoelectric energy harvester for low amplitude vibration sources

Design, modeling, and experiment of a multi-bifurcated cantilever piezoelectric energy harvester

Modelling of a Low Frequency Based Rectangular Shape Piezoelectric Cantilever Beam for Energy Harvesting Applications

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