Global optimisation approach for designing high-efficiency piezoelectric beam-based energy harvesting devices

Yurchenko, Daniil; Machado, Lucas Queiroz; Wang, Junlei; Bowen, Chris; Sharkh, Suleiman M.; Moshrefi-Torbati, M.; Val, Dimitri V.

doi:10.1016/j.nanoen.2021.106684

Cited by 19 publications

(7 citation statements)

References 53 publications

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“…The loads computed by XFLOW are transferred to ascertain the structural stress through continuity boundary conditions. This, in turn, determines the structural displacement using equation (3). The piezoelectric response of the PZT is then obtained using equations ( 1), ( 2) and ( 4), and this phase is completed within Abaqus.…”

Section: Finite Element Modelingmentioning

confidence: 99%

“…Conventional batteries suffer from limited lifespans, low energy density, and the requirement for periodic replacement or recharging, posing challenges in fulfilling the sustained power requirements of low-power electronic devices like sensor devices. Addressing these issues effectively involves the utilization of efficient piezoelectric energy harvesting technology [3,4] to harness energy from the operational environment. * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

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Harnessing multi-stable piezoelectric systems for enhanced wind energy harvesting

Liu,

Tao,

Jia

et al. 2024

Smart Mater. Struct.

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With the ongoing evolution of microelectronic devices toward lower power consumption, the utilization of piezoelectric materials for energy harvesting from wind-induced vibrations has garnered considerable attention. This study employs a combined approach involving finite element analysis (FEA) and experiments to investigate the energy harvesting efficiency of the multi-stable piezoelectric wind energy harvester (MPWEH) and compares its performance with two alternative systems. The MPWEH demonstrates higher strains in both the x and y directions during reciprocating cross-well vibrations, establishing its superior energy harvesting efficiency compared to the alternative systems. Notably, at a wind speed of 8 m/s, the MPWEH generates an output power nearly six times higher than Local Bistable Piezoelectric Energy Harvester (LBPEH). The MPWEH achieves the maximum power density of 9.8125 mW/cm³, whereas the LBPEH registers the power density of 1.625 mW/cm³. The experimental results indicate that, under the optimal load resistance of 40 kΩ and a wind speed of 14 m/s, the MPWEH achieves a peak output power of 2.76 mW, with a power density of 17.25 mW/cm³. The versatile applicability of the MPWEH extends across various low-power consumption microelectronic devices, positioning it as a valuable candidate for empowering continuous monitoring sensors in diverse domains.

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Section: Finite Element Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Harnessing multi-stable piezoelectric systems for enhanced wind energy harvesting

Liu,

Tao,

Jia

et al. 2024

Smart Mater. Struct.

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show abstract

“…The cantilever beam is simple and easy to generate large strains, while the cymbal structure can withstand larger impact forces, and the stacked structure with multiple layers can withstand high mechanical loads. PEGs must operate at frequencies resonant with the device intrinsic frequency to run at maximum efficiency, 199 , 200 so designers must select appropriate materials and structures based on the target application frequency and structure size.…”

Section: Power Generation Mechanismsmentioning

confidence: 99%

Small wind turbines and their potential for internet of things applications

Wang,

Xiong,

Zhang

et al. 2023

iScience

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“…Various applications of flexible electro-mechanical conversion devices have received increasing attention on self-powered electronic systems, such as medical health monitoring systems, , sensors, , wearable electronic materials, , micro-electromechanical systems , and flexible circuits. , Compared with other devices, the electrostatic flexible electret piezoelectric material is a kind of self-driving piezoelectric device, which can work without bias voltage. , The key technology of electret is the preparation of charge storage space in the polymer. At present, the most common methods of spatial structure preparation are puffing technology, imprint technology, electrospinning, sol–gel, etc. − However, the current preparation technology has a small storage space and low stability in the polymer, which seriously affects the application of its mechanical and electrical sensing performance and signal monitoring.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication and Analysis of Microcapsule Electrets with a Tunable Flexoelectric-like Response

Zheng

Wang

Yang

et al. 2023

ACS Appl. Mater. Interfaces

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The electret has drawn considerable attention as an emerging flexible energy collector. In this work, a charged microcapsule is designed which can provide a stable storage space for electric charge in the electret. The flexoelectric-like response is achieved by embedding a layer of charged microcapsules in the middle plane of the flexible polymer to form an electret. The results of Fourier transform infrared spectroscopy and energy-dispersive X-ray spectroscopy verified the successful preparation of microcapsules. Zeta potential analysis showed the negative electrical properties of the microcapsules. The prepared microcapsule electret has a significant flexoelectric effect under loading conditions. This work presents a preliminary theoretical study of the microcapsule electret to optimize the output characteristics of the electret by varying the parameters, including the number of microcapsules, the size of the electret, and the external load. Good agreement was achieved with the experimental results, which verified the validity of the theoretical study. This work provides a new method for preparing electret and further promotes its application in electromechanical transducers.

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Global optimisation approach for designing high-efficiency piezoelectric beam-based energy harvesting devices

Cited by 19 publications

References 53 publications

Harnessing multi-stable piezoelectric systems for enhanced wind energy harvesting

Harnessing multi-stable piezoelectric systems for enhanced wind energy harvesting

Small wind turbines and their potential for internet of things applications

Fabrication and Analysis of Microcapsule Electrets with a Tunable Flexoelectric-like Response

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