Design, modeling and experiments of broadband tristable galloping piezoelectric energy harvester

Wang, Junlei; Geng, Linfeng; Zhou, Shengxi; Zhang, Zhien; Lai, Zhihui; Yurchenko, Daniil

doi:10.1007/s10409-020-00928-5

Cited by 115 publications

(44 citation statements)

References 46 publications

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“…Besides the fundamental research, some researchers explored various innovative configurations to improve the performance of GPEHs. Bibo et al, 45 Yang et al, 46 and Wang et al 47 proposed bistable or tristable GPEHs by introducing a magnetic nonlinearity to improve the energy harvesting performance. It was found that the inter‐well oscillation enabled the nonlinear GPEHs to achieve enhanced power outputs.…”

Section: Introductionmentioning

confidence: 99%

An experimental study of a two‐degree‐of‐freedom galloping energy harvester

Wang

Huang

et al. 2020

Int J Energy Res

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Summary The cut‐in wind speed and the power output are the two main concerns of a galloping energy harvester. A good galloping energy harvester is expected to have a low cut‐in wind speed and a high power output. This paper proposes a two‐degree‐of‐freedom (2‐DOF) galloping‐based piezoelectric energy harvester (GPEH) by mounting a secondary beam onto a primary piezoelectric cantilever beam. An experimental study is conducted to evaluate the actual energy harvesting performance of the proposed 2‐DOF GPEH. The effects of the secondary beam length and the mounting position on the cut‐in wind speed and the power output are investigated. It is revealed that the introduction of the secondary beam can reduce the cut‐in wind speed from 2.372 m/s to 1.961 m/s. Mounting the secondary beam further away from the bluff body weakens the influence of the secondary beam on the energy harvesting performance of the 2‐DOF GPEH. Moreover, the power output can be increased or decreased by tuning the secondary beam length. The power output from a well‐tuned 2‐DOF GPEH can be increased for about 111.1%, as compared to the conventional 1‐DOF GPEH. By contrast, the power output from a badly tuned 2‐DOF GPEH is reduced for about 22.2%. A simple theoretical model is developed for explaining the experimentally observed phenomenon and can be used to provide some guidelines in the design of 2‐DOF GPEH to avoid performance deterioration.

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Section: Introductionmentioning

confidence: 99%

An experimental study of a two‐degree‐of‐freedom galloping energy harvester

Wang

Huang

et al. 2020

Int J Energy Res

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“…Wang et al [124] conducted similar investigations and intrawell, chaotic, and interwell oscillations were observed with respect to low, medium, and high wind speed intervals, respectively. As shown in Figure 20, compared to the bistable energy harvester, the tristable energy harvester has three stable equilibrium positions (A, E, and C) and two unstable equilibrium positions (B and D), leading to shallower potential wells than that of bistable energy harvester as the potential energy is distributed into three potential wells [125,126]. Due to the effect of magnetic force, the restoring force becomes more nonlinear, and the electromechanical dynamic modeling could be expressed as…”

Section: Shock and Vibrationmentioning

confidence: 99%

The State-of-the-Art Brief Review on Piezoelectric Energy Harvesting from Flow-Induced Vibration

Zhu

Tang

Yang

et al. 2021

Shock and Vibration

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Flow-induced vibration (FIV) is concerned in a broad range of engineering applications due to its resultant fatigue damage to structures. Nevertheless, such fluid-structure coupling process continuously extracts the kinetic energy from ambient fluid flow, presenting the conversion potential from the mechanical energy to electricity. As the air and water flows are widely encountered in nature, piezoelectric energy harvesters show the advantages in small-scale utilization and self-powered instruments. This paper briefly reviewed the way of energy collection by piezoelectric energy harvesters and the various measures proposed in the literature, which enhance the structural vibration response and hence improve the energy harvesting efficiency. Methods such as irregularity and alteration of cross-section of bluff body, utilization of wake flow and interference, modification and rearrangement of cantilever beams, and introduction of magnetic force are discussed. Finally, some open questions and suggestions are proposed for the future investigation of such renewable energy harvesting mode.

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“…Based on the PEH, multiple mechanical oscillations have been used to harvest energy, such as base excitations [13,21,22], rotational vibrations [23], and flow-induced vibrations [24][25][26][27]. Flow-induced piezoelectric energy harvester is also divided into many types by the shape of bluff body, which includes vortex-induced vibration (VIV) [28][29][30], galloping [31][32][33][34], flutter [35,36] and wake-induced vibration (WIV) [37,38]. Vortex-induced vibration piezoelectric energy harvester (VIVPEH) can convert the low-velocity wind into electrical power.…”

Section: Introductionmentioning

confidence: 99%

Design and Modeling of a Magnetic-Coupling Monostable Piezoelectric Energy Harvester Under Vortex-Induced Vibration

et al. 2020

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Vortex-induced vibration (VIV) is used by piezoelectric energy harvesters to generate electricity from wind and water flow. In this study, we introduce the nonlinear magnetic force into piezoelectric energy harvesters and develop a nonlinear monostable piezoelectric VIV transducer. We build a distributed-parameter model based on the Euler-Bernoulli beam theory and Kirchhof's law to analyze the dynamic responses of the magnetic-coupling piezoelectric energy harvester (MCPEH). Model results show that the performance of the MCPEH varies greatly with the increase of the load resistance and the length of the used PZT. There are two optimal resistance values for the MCPEH. When R<31.6 kΩ, both the external load resistance and the PZT length affect the maximum power output. The little optimum resistance value will dwindle with the increase of the PZT length, whereas the large optimum resistance value still fixes at 1.78 MΩ with the increase of the PZT length. Due to the resistive shunt damping effect and the kinetic energy of wind, the resonance domain becomes wider in these ranges of load resistance smaller than 31.6 kΩ and larger than 316 kΩ comparing that when the load resistance is larger than 31.6 kΩ and smaller than 316 kΩ. Besides, the performance is enhanced by the monostable nonlinear magnetic force, which can be improved by decreasing the value of the distance between moving magnets and fixed magnets. The energy harvester shows a maximum power output of 0.21 mW under excitation of wind velocity is 1.6 m/s when the cylindrical diameter is 20 mm, the PZT length is 30 mm and the load resistance is 0.5 MΩ.

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Design, modeling and experiments of broadband tristable galloping piezoelectric energy harvester

Cited by 115 publications

References 46 publications

An experimental study of a two‐degree‐of‐freedom galloping energy harvester

An experimental study of a two‐degree‐of‐freedom galloping energy harvester

The State-of-the-Art Brief Review on Piezoelectric Energy Harvesting from Flow-Induced Vibration

Design and Modeling of a Magnetic-Coupling Monostable Piezoelectric Energy Harvester Under Vortex-Induced Vibration

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