A piezoelectric cantilever-beam energy harvester (PCEH) with a rectangular hole in the metal substrate

Xiong, Yuzhong; Song, Fang; Leng, Xinghuan

doi:10.1007/s00542-019-04608-8

Cited by 18 publications

(11 citation statements)

References 21 publications

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“…Additionally, a notch was introduced into the beam to further enhance strain distribution. The study found that, with precise PZT placement, an NCBEH with a 55 mm slot length can generate 15% more voltage output at lower natural frequencies compared to existing Piezoelectric Cantilever Beam Energy Harvesters (PCEH) [1]. Experimental tests were also conducted to compare the voltage output response of the NCBEH and the PCEH, with the results showing good agreement with the numerical simulation findings.…”

mentioning

confidence: 70%

Simulation and experimental study of notched cantilever beam for improved vibration energy harvesting

Tamrakar,

Nannaware

2024

Eng. Res. Express

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This research paper addresses the design and analysis of a Notched Cantilever Beam Energy Harvester (NCBEH) aimed at enhancing vibration energy harvesting. The voltage output from Lead Zirconate Titanate (PZT) piezoelectric material is directly related to the strain it experiences. Therefore, numerical simulations using ANSYS were conducted to investigate the variations in natural frequency and stress-strain distribution with respect to slot length in a slotted cantilever beam. Additionally, a notch was introduced into the beam to further enhance strain distribution. The study found that, with precise PZT placement, an NCBEH with a 55 mm slot length can generate 15% more voltage output at lower natural frequencies compared to existing Piezoelectric Cantilever Beam Energy Harvesters (PCEH) [1]. Experimental tests were also conducted to compare the voltage output response of the NCBEH and the PCEH, with the results showing good agreement with the numerical simulation findings.

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mentioning

confidence: 70%

Simulation and experimental study of notched cantilever beam for improved vibration energy harvesting

Tamrakar,

Nannaware

2024

Eng. Res. Express

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“…3). The tip mass is affixed to the core/electrode of diaphragm, to enhance the output power and its low frequency performance (Xiong et al, 2020). E. Minazara et al (2006) performed an experiment using piezoelectric diaphragm for vibration-energy-harvesting.…”

Section: B Diaphragm Type Piezoelectric Transducermentioning

confidence: 99%

Energy Harvesting using Piezoelectric Transducers: A Review

Samal¹,

Shiney²

2021

JSR

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For managing the soaring power demand, various types of Energy Harvesting Systems (EHS) have been developed. The energy harvesting from unutilized natural renewable sources using piezoelectric transducers is one of them. Day-by-day different analytical models are being reported with different piezoelectric transducers to improve the energy efficiency and output power of the energy harvesting systems. The goal of this paper is to review the PEH (Piezo-electric Energy Harvesting) systems developed in last decade to harness energy required for small electronics. The Piezo-electric energy harvesting system works on the phenomena of direct piezo-electric effect; i.e. the transducer generates electric energy when it is exposed to mechanical stress/pressure/vibration. The suitability of piezo-electric transducer for different applications depends upon the piezo-electric materials, their shapes and configurations. In this article the different piezoelectric materials and the transducer configurations have been discussed. The performance parameters of different piezo-electric energy harvesting systems have been analyzed and the scope of improvement in the existing systems has been discussed in this manuscript.

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“…By adjusting the masses, the first two resonant frequencies can be tuned very close, resulting in a wider effective operating bandwidth. Xiong, Y. et al [ 34 ] designed a cantilever beam with a rectangular hollow middle layer, which reduced the resonance frequency of the cantilever beam and increased the output voltage. Wang, L. et al [ 35 ] designed a hollow triangular piezoelectric cantilever beam suitable for the random low frequency vibration environment of transportation infrastructure.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of Piezoelectric Cantilever Beam Vibration Energy Harvester

Gao

et al. 2022

Micromachines

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Piezoelectric cantilever beams are commonly utilized to harvest energy from environmental vibrations due to their simple structures. This paper optimizes a single crystal trapezoidal hollow structure piezoelectric cantilever beam vibration energy harvester with a copper substrate to achieve high energy density at a low frequency. Finite element analysis (FEA) is adopted to optimize the size of the copper substrate at first, and the piezoelectric energy harvester (PEH) is further optimized with a trapezoidal hollow structure under the optimal size of the copper substrate. The developed PEH with a trapezoidal hollow structure (La = 20 mm, Lb = 15 mm, and Lh = 40 mm), with a copper substrate of 80 mm × 33 mm × 0.2 mm, can obtain the best output performance. Under the condition of 1 g acceleration, the resonance frequency and peak voltage output were 23.29 Hz and 40.4 V, respectively. Compared with the unhollowed PEH, the developed trapezoidal hollow structure PEH can reduce its resonant frequency by 12.18% and increase output voltage by 34.67%, while also supplying a power density of 7.24 mW/cm3. This study verified the feasibility of the optimized design through simulation and experimental comparison.

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A piezoelectric cantilever-beam energy harvester (PCEH) with a rectangular hole in the metal substrate

Cited by 18 publications

References 21 publications

Simulation and experimental study of notched cantilever beam for improved vibration energy harvesting

Simulation and experimental study of notched cantilever beam for improved vibration energy harvesting

Energy Harvesting using Piezoelectric Transducers: A Review

Design and Optimization of Piezoelectric Cantilever Beam Vibration Energy Harvester

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