Effect of various shapes and materials on the generated power for piezoelectric energy harvesting system

Kaur, Sarabjeet; Graak, Pinki; Gupta, Apoorv; Chhabra, Priya; Kumar, Dinesh; Shetty, Arjun

doi:10.1063/1.4945196

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…Both theory simulation and experiment have demonstrated that maximum output power can be obtained from trapezoid or triangular cantilever with the smallest areas, meeting the given energy requirement [18,19]. Kauret et al [20] also simulated the influence of maximum power generation from four designed shapes named as Pi, E, Rectangular, and T cantilever (shown in Fig. 9), composed of piezoelectric material (PZT-5H, AlN, BaTiO 3 ) with thickness of 0.5 μm and silicon base material of 1.5 μm.…”

Section: Shape For Cantilevermentioning

confidence: 99%

“…Considering the advantage of the cantilever structure with low resonant frequency, Ren et al [31] presented a highperformance cantilever driving low-frequency energy harvester (CANDLE) consisting of a cantilever beam and cymbal, as shown in Fig. 14. Using this special structure, the resonance frequency is reduced dramatically with the increase of output [20] power immensely compared with traditional cymbal PEH. Peak voltage of 38 V and maximum power of 3.7 mW were obtained at 102 Hz.…”

Section: Cymbal Structurementioning

confidence: 99%

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Recent progress on piezoelectric energy harvesting: structures and materials

Jia-dong

Liu

et al. 2018

Adv Compos Hybrid Mater

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With the rapid development of advanced technology, piezoelectric energy harvesting (PEH) with the advantage of simple structure, polluted relatively free, easily minimization, and integration has been used to collect the extensive mechanical energy in our living environment holding great promise to power the self-sustainable system and portable electronics. In this paper, attempts have been made to review the progress of piezoelectric materials and devices used for energy harvesting. The review focused on three parts: structure of piezoelectric devices (cantilever, cymbal, and stacks); theoretical mode, including vibration mode (d 31 and d 33 ) and its responding theories of different devices; and piezoelectric materials, among which the electric performance of Pb(ZrTi)O 3 -based, lead-free-based, and composites applied in bulk/micro/nano-PEH devices were introduced in details. It is suggested that a new structure of PEH should be designed by combining advantages of cantilever, stacks, and cymbal structure. Besides, high d 33 × g 33 value and low ε of piezoelectric materials are required in order to generate high electric output power for bulk/micro/nano-PEH. Additionally, lead-free piezoelectric ceramics is a candidate for manufacturing PEH devices, and nano-composite materials should be developed to further improve the flexibility of piezoelectric materials.

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Section: Shape For Cantilevermentioning

confidence: 99%

Section: Cymbal Structurementioning

confidence: 99%

Recent progress on piezoelectric energy harvesting: structures and materials

Jia-dong

Liu

et al. 2018

Adv Compos Hybrid Mater

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“…Several structural designs on the beam shapes had been developed, namely triangular [9,10], tapered [11], reverse tapered [12], quadratic [13], trigonometrically tapered, and exponentially tapered [14] cantilever to increase the deflection of the beam which will lead to a higher PZT's strain level. Other structural design such as multi-branch cantilever [15,16], had been proposed for the low-frequency vibration source as well to enhance the energy harvesting performance. Proof mass [17] is added at the free end to tune the resonance frequency of the cantilever and increase the power output.…”

Section: Introductionmentioning

confidence: 99%

Design, modeling and testing of a new compressive amplifier structure for piezoelectric harvester

Long¹,

Khoo²,

Ong³

et al. 2021

Smart Mater. Struct.

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In recent years, harnessing electrical energy from mechanical vibration by using a piezoelectric energy harvester (PEH) has attracted much attention from researchers. This sustainable energy harvester is useful for wireless sensor network, where a replacement or replenishment of an energy source such as a battery is impractical. From previous studies, the amount of energy generated by the PEH is very limited even in a high force environment. To solve this issue, mechanical amplifier structure such as Cymbal structure is implemented to amplify the tensile loading force towards the PEH. In terms of the material strength perspective, this performance can be further enhanced by using a compressive-type mechanical amplifier structure, as the compressive yield strength of piezoelectric material is much higher than its tensile yield strength. In this study, a compressive structural design which is named as Hull structure is proposed. Several techniques included analytical model analysis, finite element analysis (FEA), and experimental testing have been used to evaluate its performance. It shows a force amplification factor of 9.72 at 6° through the analytical model. From the FEA result, the proposed Hull structure shows great potential in enhancing the power output of 11.34 mW, which is 3.08 times larger than the benchmarking Tensile Cymbal structure. It also shows 5.28 times greater output voltage than the benchmark case in the experiment. Besides, it has a great advantage of providing a wider area for excitation loading force which increases the PEH’s load capacity and suitable for the vehicular excitation application.

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