Enhanced Acoustic Energy Harvesting Using Coupled Resonance Structure of Sonic Crystal and Helmholtz Resonator

Yang, Aichao; Li, Ping; Wen, Yumei; Lu, Caijiang; Xiao, Peng; Zhang, Jitao; He, Wei

doi:10.7567/apex.6.127101

Cited by 74 publications

(42 citation statements)

References 22 publications

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“…Only a few research groups have studied this area with a focus on polarization-patterned piezoelectric solids [17], quarter-wavelength resonators [18], Helmholtz resonators [19][20] and phononic crystals [21][22][23][24]. In addition, Yang et al [25] combined the sonic crystal concept with the Helmholtz resonators to enhance the acoustic energy harvesting. Furthermore, as shown recently, acoustic metamaterials can be used to enhance energy harvesting by changing wave propagation.…”

Section: Introductionmentioning

confidence: 98%

Modeling and enhancement of piezoelectric power extraction from one-dimensional bending waves

2014

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Vibration-based energy harvesting has been heavily researched over the last decade to enable self-powered small electronic components for wireless applications in various disciplines ranging from biomedical to civil engineering. The existing research efforts in this interdisciplinary field have mostly focused on the harvesting of deterministic or stochastic vibrational energy available at a fixed position in space. Such an approach is convenient to design and employ linear and nonlinear vibration-based energy harvesters, such as base-excited cantilevers with piezoelectric laminates. However, persistent vibrations at a fixed frequency and spatial point, or standing wave patterns, are rather simplified representations of ambient vibrational energy. As an alternative to energy harvesting from spatially localized vibrations and standing wave patterns, this work presents an investigation into the harvesting of one-dimensional bending waves in infinite beams. The focus is placed on the use of piezoelectric patches bonded to a thin and long beam and employed to transform the incoming wave energy into usable electricity while minimizing the traveling waves reflected and transmitted from the harvester domain. To this end, performance enhancement by wavelength matching, resistiveinductive circuits, and a localized obstacle are explored. Electroelastic model predictions and performance enhancement efforts are validated experimentally for various case studies.

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Section: Introductionmentioning

confidence: 98%

Modeling and enhancement of piezoelectric power extraction from one-dimensional bending waves

2014

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“…The amplified cavity pressure drives the vibration of the piezoelectric plate mounted on the back plate or in the cavity of Helmholtz resonator, the electric energy is thus induced by the piezoelectric effect. On the other hand, the sonic crystal configuration has also been exploited in acoustic energy harvesting [16][17][18]. Owing to the acoustic wave localization effect inside the sonic crystal cavity, the cavity pressure is greatly magnified to deform the piezoelectric material.…”

Section: Introductionmentioning

confidence: 99%

“…Acoustic energy is another potential source for power generation. The increasing research studies about acoustic energy harvesting have been reported [12][13][14][15][16][17][18]. The Helmholtz resonator is widely used in the acoustic energy harvester systems since it can largely amplify the acoustic pressure in its cavity [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Tunable acoustic energy harvester using Helmholtz resonator and dual piezoelectric cantilever beams

Yang

Wen

et al. 2014

2014 IEEE International Ultrasonics Symposium

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A tunable acoustic energy harvester consisting of dual piezoelectric cantilever beams and a Helmholtz resonator with a perforated backplate is proposed. The tunability of the operation frequency band can be achieved not only via simply adjusting the radius (r) of the aperture due to the strong dependence of resonance frequencies of the Helmholtz resonator on the acoustic impedance affected by r, but also by changing the distance (d) between piezoelectric cantilever beams because of their magnetic force interaction. Experimental results show that as r (or d) increases from 0 (or 1.4) to 1.0 (or 3.4) cm, the frequency band is broadened and varies from 175.5~198 (or 175.5~213) Hz to 170.5~221 (or 161~203) Hz. The average ratio of the adjusted frequency bandwidth to r (or d) can reach 28 (or 2.25) Hz/cm over the range of 125~250 Hz.

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“…Vibration-based energy harvester using piezoelectric material is widely adopted owing to its high energy density, simple structure and easy miniaturization. [1][2][3][4][5] Conventional linear piezoelectric energy harvesting devices only work optimally near their resonance frequencies with a narrow frequency bandwidth around a particular resonant frequency. 6 However, vibration existing in environments generally has a wide band of frequency.…”

Section: Introductionmentioning

confidence: 99%

Energy harvesting in a quad-stable harvester subjected to random excitation

2016

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A broadband compressive-mode vibration energy harvester enhanced by magnetic force intervention approach Applied Physics Letters 110, 163904 (2017); 10.1063/1.4981256 AIP ADVANCES 6, 025022 (2016) Energy harvesting in a quad-stable harvester subjected to random excitation In response to the defects of bi-stable energy harvester (BEH), we develop a novel quad-stable energy harvester (QEH) to improve harvesting efficiency. The device is made up of a bimorph cantilever beam having a tip magnet and three external fixed magnets. By adjusting the positions of the fixed magnets and the distances between the tip magnet and the fixed ones, the quad-stable equilibrium positions can emerge. The potential energy shows that the barriers of the QEH are lower than those of the BEH for the same separation distance. Experiment results reveal that the QEH can realize snap-through easier and make a dense snap-through in response under random excitation. Moreover, its strain and voltage both become large for snap-through between the nonadjacent stable positions. There exists an optimal separation distance for different excitation intensities. C 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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Enhanced Acoustic Energy Harvesting Using Coupled Resonance Structure of Sonic Crystal and Helmholtz Resonator

Cited by 74 publications

References 22 publications

Modeling and enhancement of piezoelectric power extraction from one-dimensional bending waves

Modeling and enhancement of piezoelectric power extraction from one-dimensional bending waves

Tunable acoustic energy harvester using Helmholtz resonator and dual piezoelectric cantilever beams

Energy harvesting in a quad-stable harvester subjected to random excitation

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