Influence and optimization of the electrodes position in a piezoelectric energy harvesting flag

Piñeirúa, Miguel; Doaré, Olivier; Michelin, Sébastien

doi:10.1016/j.jsv.2015.01.010

Cited by 39 publications

(26 citation statements)

References 39 publications

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“…For a plate undergoing LCOs, high fluid loading, which is classically associated with destabilisation by damping, leads to a greater EH but with a weaker robustness to flow velocity fluctuations due to the sensitivity of the flapping mode selection [75]. Piñeirua et al [98] and Xia et al [26] Li et al [99] explored energy harvesting from a piezo-leaf consisting of a flexible beam subjected to cross flow. The piezo-leaf architecture amplified the vibration by an order of magnitude, making it appropriate for low-cost piezoelectric materials.…”

Section: Limit Cycle Oscillations Of Platesmentioning

confidence: 99%

Energy harvesting by means of flow-induced vibrations on aerospace vehicles

Ronch

et al. 2016

Progress in Aerospace Sciences

140

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This paper reviews the design, implementation, and demonstration of energy harvesting devices that exploit flow-induced vibrations as the main source of energy.Starting with a presentation of various concepts of energy harvesters that are designed to benefit from a general class of flow-induced vibrations, specific attention is then given at those technologies that may offer, today or in the near future, a potential benefit to extend the operational capabilities and to monitor critical parameters of

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Section: Limit Cycle Oscillations Of Platesmentioning

confidence: 99%

Energy harvesting by means of flow-induced vibrations on aerospace vehicles

Ronch

et al. 2016

Progress in Aerospace Sciences

140

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“…However, from a modeling point of view, this introduces discontinuities in the piezoelectric forcing on the flag; more importantly, the finite length of the piezoelectric patch effectively acts as an averaging filter in space: the forcing on the electric circuit is only a function of the change in orientation between s − i and s + i , and not of the detailed bending. As a result, more energy can be harvested in the continuous limit consisting of many short piezoelectric patches and associated circuits, although a careful design of a finite number of a few piezoelectric patches allows to approach almost the same efficiency as that of the continuous limit [21].…”

Section: B Piezoelectric Coveragementioning

confidence: 99%

“…Modeling of such piezoelectric flags have so far followed two distinct routes: (i) a continuous approach, where the energy associated with the local bending is used locally into independent circuits [9,17,19] and (ii) a discrete approach, where the structure is covered by a single element (or a small number) powering a single circuit [20][21][22][23]. Beyond its formal simplicity, the main advantage of the former is its ability to exploit the entire structure's deformation, regardless of the deformation mode excited by the fluid-solid coupling.…”

Section: Introductionmentioning

confidence: 99%

Fluid-solid-electric energy transport along piezoelectric flags

Xia

Doaré

Michelin

2017

European Journal of Computational Mechanics

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The fluid-solid-electric dynamics of a flexible plate covered by interconnected piezoelectric patches in an axial steady flow are investigated using numerical simulations based on a reduced-order model of the fluid loading for slender structures. Beyond a critical flow velocity, the fluid-solid instability results in large amplitude flapping of the structure. Short piezoelectric patches positioned continuously along the plate convert its local deformation into electrical currents that are used within a single internal electrical network acting as an electric generator for the external output circuit. The relative role of the internal and external impedance on the energy harvesting of the system is presented and analyzed in the light of a full modeling of the electric and mechanical energy exchanges and transport along the structure. * Electronic address: sebastien.michelin@ladhyx.polytechnique.fr arXiv:1612.05482v1 [physics.flu-dyn]

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“…Flows are a widely available source of clean energy, so amount of energy harvesting systems and devices are based on flow-induced vibrations of structures, such as vortex-induced vibrations [6][7][8][9], flutter of wing profiles [10][11][12], of cylinders in axial flows [13,14], or flags [15][16][17][18][19]. Georage W. Taylor etc proposed a small subsurface ocean/river power generator.…”

Section: Introductionmentioning

confidence: 99%

“…This energy harvester device was based on the long strips of piezoelectric polymer that undulate in water flow just like the motion of an eel [9]. Besides, Miguel Piñeirua etc presented the influence and optimization of the electrodes position in a piezoelectric energy harvesting flag, the flag covered with piezoelectric plate that convert mechanical of fluttering flag into electrical energy [19]. The present work focused on the former studies and presented a vibration energy harvesting system as well as device of bionic thinking and methods.…”

Section: Introductionmentioning

confidence: 99%

A Bio-Inspired Vibration Energy Harvester for Downhole Electrical Tools

Yang¹,

Pei²,

Hou

et al. 2015

SPE/IATMI Asia Pacific Oil &Amp; Gas Conference and Exhibition

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At present, most of the downhole electrical devices use disposable batteries or rechargeable batteries as power supplies. When the disposable batteries run out, the downhole devices have to be fished up to replace the batteries. For those tools with rechargeable batteries, chargers should be put into the downhole position close to the tools to recharge the batteries. The operations are very tedious and the normal production is interrupted. Inspired by discharging characteristic of electrophorus electricus, this paper proposes a vibration energy harvester, aiming to provide a long term power supply for downhole tools. The harvester mainly consists of bluff body, piezoelectric energy transducer, the size of designed piezoelectric beam is 52mm * 7mm * 0.82mm (Length * Width * Thickness), and a proof mass. The bluff body is cylinder and installed in front of the harvester, facing the flowing fluid. It destroys the steady flow and makes the piezoelectric energy transducer vibrating. Due to the piezoelectric effect, the vibrating of the energy transducer regularly generates electric energy. The electric energy rectified by voltage conversion circuit can be used to power the controlling system and the driving unit, or to recharge the rechargeable batteries of downhole tools. Under the laboratory condition of water flow velocity of 0.81 m/s and the Reynolds Number Re is 20000, the output peak-peak voltage of the piezoelectric energy harvester is around 44 V, which means it can directly provide the energy for rechargeable battery. This results show that the harvester can potentially offer an intriguing alternative for harvesting ambient energy from flow and provides a new method for long-term energy supply for downhole electrical tools. Futere piezoelectric energy harvester may use more efficient piezoelectric transducer and this device must be optimized to make the piezoelectric energy harvester could have a higher harvesting power.

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Influence and optimization of the electrodes position in a piezoelectric energy harvesting flag

Cited by 39 publications

References 39 publications

Energy harvesting by means of flow-induced vibrations on aerospace vehicles

Energy harvesting by means of flow-induced vibrations on aerospace vehicles

Fluid-solid-electric energy transport along piezoelectric flags

A Bio-Inspired Vibration Energy Harvester for Downhole Electrical Tools

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