Piezoelectric energy harvesting under free and forced vibrations for different operating conditions DOI Creative Commons

Amine Ben Alaya,

Charfeddine Mrad,

Férid Kourda

et al.

AIMS energy, Journal Year: 2024, Volume and Issue: 12(6), P. 1334 - 1365

Published: Jan. 1, 2024

<p>The field of energy harvesting has grown rapidly, with the huge development in low-power devices and Internet Things (IoT). With intent electrical for self-powered devices, piezoelectric technology is considered. In this study, we proposed several mechanical improvements to enhance produced through piezoelectricity. To determine best configuration harvest energy, three electric circuits were tested using a material (PZT-5H) mounted directly on vibration exciter. The harvested by each circuit was determined at different excitation frequencies, from 20 50 Hz, an amplitude 2 mm. favorable approximately 35 μJ frequency Hz. This subsequently used remaining aspects work. obtained fixed-free metallic plate used. First, free tried, imposing displacement values end plate. consisted materials: copper, aluminum, steel. PZT-5H positions material, position, displacement. highest around 6 μJ. Second, forced 0.5 mm 10 fixed lengths. 540 Third, showed that it possible further increase tuning resonance then 1010 results allowed optimizing toward supplying applications.</p>

Language: Английский

Jellyfish-inspired bistable piezoelectric-triboelectric hybrid generator for low-frequency vibration energy harvesting DOI

Yingxuan Cui,

Tao Yang,

Hongchun Luo

et al.

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 279, P. 109523 - 109523

Published: June 26, 2024

Language: Английский

Citations

14
Von Mises stress analysis of surgery chair designed for laparoscopic surgeon with lifting mechanism DOI Creative Commons
Gatot Santoso, Muhammad Imam Ammarullah,

Sugiharto Sugiharto

et al.

AIP Advances, Journal Year: 2024, Volume and Issue: 14(4)

Published: April 1, 2024

Laparoscopic surgeons can experience musculoskeletal disorders due to standing for long periods during surgical procedures. Surgery chair help laparoscopic in overcoming these problems so that they carry out procedures a sitting position. However, the surgery chairs currently on market use hand-controlled pedal lifting mechanism, which is an obstacle because it interferes with concentration of hands using tools. This study contributes development latest design designed Indonesian foot-controlled does not interfere surgeon tools The mechanism proposed uses worm gear rationalization rotation lock, space efficiency, and minimizes sound when mechanism. Computational simulations via finite element method were carried mechanical components current analyze von Mises stress under down, middle, top conditions. results show safe. achievement expected be initiation better future.

Language: Английский

Citations

12
Bio-inspired structures for energy harvesting self-powered sensing and smart monitoring DOI

Yingxuan Cui,

Hongchun Luo,

Tao Yang

et al.

Mechanical Systems and Signal Processing, Journal Year: 2025, Volume and Issue: 228, P. 112459 - 112459

Published: Feb. 11, 2025

Language: Английский

Citations

1
Design analysis and simulation of serpentine-shaped piezoelectric cantilever beam for pipeline vibration-based energy harvester DOI Creative Commons
Wan Nabila Mohd Fairuz,

Illani Mohd Nawi,

Mohamad Radzi Ahmad

et al.

AIMS energy, Journal Year: 2024, Volume and Issue: 12(3), P. 561 - 599

Published: Jan. 1, 2024

<abstract> <p>This study investigated the design and simulation of a novel serpentine-shaped piezoelectric cantilever beam to harness pipeline vibration energy. As demand for sustainable energy sources increases, harvesting from environmental vibrations offers an attractive way use low-power devices. The purpose proposed serpentine configuration is improve dissipation efficiency by maximizing material exposure dynamic mechanical stress caused vibration. process included finite element analysis simulations performed using COMSOL Multiphysics software optimize geometry beam. structure was strategically designed take advantage flexural its operating dynamics. Extensive evaluated beam, taking into account various parameters such as size, shape properties. From conducted in software, model able produce up 14.38 V at resonant frequency 263 Hz. results show effectiveness generating electrical within safe region 10 300 Hz.</p> </abstract>

Language: Английский

Citations

1
An experimental and theoretical piezoelectric energy harvesting from a simply supported beam with moving mass DOI

Akram M. Mohaisen,

Thaier J. Ntayeesh

Archives of Materials Science and Engineering, Journal Year: 2023, Volume and Issue: 123(1), P. 13 - 29

Published: Sept. 1, 2023

The feasibility of harvesting electrical energy from mechanical vibration is demonstrated in the thesis. In technique, harvested simply supported beam under a moving mass using thin piezoelectric material.The structure represented by basic length L that at both ends and traversed M travelling constant velocity v. Euler-Bernoulli differential equation describes its behaviour. dynamic analysis performed three masses (35.61, 65.81, 79.41) gr each uniform speeds (1.6, 2 2.4) m/s. A electromechanical system obtained transforming constitutive solved numerically MATLAB.The results indicate numerical experimental values for midpoint deflection voltage are very close.Using COMSOL programme, proposed approach checked comparing with data finite element method (FEM). An setup was also built constructed to determine created patch response as result along beam.The show deflection, voltage, all increase speed magnitude increase. power vs. load resistance curve begins zero, increases maximum value, then remains almost increased further. optimal be 0.63 m. When increases, resonant frequency decreases, same time increases. However, increasing thickness has opposite effect; whereas raising width does not affect but decreases harvesting.The most essential point here need have correctly scale models. They can provide substantial amount information low cost, accommodate variety test settings, aid selection verification effective analytical model resolve actual issue.

Language: Английский

Citations

2
Piezoelectric energy harvesting under free and forced vibrations for different operating conditions DOI Creative Commons

Amine Ben Alaya,

Charfeddine Mrad,

Férid Kourda

et al.

AIMS energy, Journal Year: 2024, Volume and Issue: 12(6), P. 1334 - 1365

Published: Jan. 1, 2024

<p>The field of energy harvesting has grown rapidly, with the huge development in low-power devices and Internet Things (IoT). With intent electrical for self-powered devices, piezoelectric technology is considered. In this study, we proposed several mechanical improvements to enhance produced through piezoelectricity. To determine best configuration harvest energy, three electric circuits were tested using a material (PZT-5H) mounted directly on vibration exciter. The harvested by each circuit was determined at different excitation frequencies, from 20 50 Hz, an amplitude 2 mm. favorable approximately 35 μJ frequency Hz. This subsequently used remaining aspects work. obtained fixed-free metallic plate used. First, free tried, imposing displacement values end plate. consisted materials: copper, aluminum, steel. PZT-5H positions material, position, displacement. highest around 6 μJ. Second, forced 0.5 mm 10 fixed lengths. 540 Third, showed that it possible further increase tuning resonance then 1010 results allowed optimizing toward supplying applications.</p>

Language: Английский

Citations

0