Exploring Piezoelectric for Sound Wave as Energy Harvester

Fang, Liew Hui; Hassan, Syed Idris Syed; Rahim, Rosemizi Abd; Isa, Muzamir; Ismail, B.

doi:10.1016/j.egypro.2017.03.341

Cited by 20 publications

(7 citation statements)

References 20 publications

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“…Figure 6 demonstrates that the resonance frequency of the piezoelectric beam (PEH) is about 68 Hz that is, in good agreement with the piezoelectric beam manufacture datasheet and previous studies. 35,36 To justify and experimentally validate the analytical results, the frequency response of each configuration is plotted with its analytical counterpart. The solid black line and black dash-dot-dot line in Figure 6 that indicate analytical and experimental results of the PEH + VM + TM configuration, respectively have a broader bandwidth in the usable voltage range compared to the other configurations and, similarly, give the largest voltage amplitude.…”

Section: Energy Harvesting Test Results Under Harmonic Base Excitationmentioning

confidence: 99%

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Investigating the influence of the viscoelastic material as a heart muscle simulator on the powering leadless pacemaker from heartbeats by using a piezoelectric beam

Siami

Jahani

Esmaili

et al. 2022

Proc Inst Mech Eng H

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This paper studies experimentally and analytically the influence of the viscoelastic cardiac muscle on the energy harvesting from heartbeats for powering the leadless pacemakers by using a piezoelectric beam. An appropriate representative gel-type viscoelastic material that mimics the heart tissue is used in the tests. The piezoelectric beam coupled with a gel-type material is analytically modeled, and experimentally tested. By considering a combination of the translational standard linear solid model and a rotational spring component for the gel-type material, the analytical model of the coupled system is developed utilizing the generalized Hamilton’s principle. The system is attached on top of a shaker and excited harmonically, and the time history of output voltage and accelerations are measured. The analytical model is verified by experimental results for the tip displacement, voltage, generated power, phase-portraits histories, and voltage FRF with harmonic base excitations. Transmissibility analysis by the analytical model shows that for excitation frequencies beyond a specific frequency, the viscoelastic material can magnify the amplitude of the excitation and incredibly improve the power generation. Experimental results demonstrate that by coupling the gel into the harvester, oscillations of the tip are increased into high energy orbits and large tip deflections around the resonance frequency. The significantly widened frequency bandwidth and the increased power output at specific input frequencies are the other results of considering the viscoelastic characteristics of the heart wall in the dynamic investigations. By simulating the response of the energy harvesting system to the heartbeat impulsive rhythm, when the energy harvesting system is attached to the viscoelastic material, the output power is increased from 18 to 55 µW. The obtained results reveal that influence of the viscoelastic properties of the heart muscle is crucial in the accurate design of the energy harvesting system for the self-powered medical leadless pacemaker.

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Section: Energy Harvesting Test Results Under Harmonic Base Excitationmentioning

confidence: 99%

“…The amplitude of the modal mechanical forcing functions can be expressed as equations (36) and (37). Using equation (32), the solution of the equations ( 33)-( 35) can be expressed as equation (38).…”

Section: Modelingmentioning

confidence: 99%

Investigating the influence of the viscoelastic material as a heart muscle simulator on the powering leadless pacemaker from heartbeats by using a piezoelectric beam

Siami

Jahani

Esmaili

et al. 2022

Proc Inst Mech Eng H

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show abstract

“…123 Also, small-scale piezoelectric transduction is more effective than electromagnetic transduction. So, it can be used in a compact structure like wind turbine 124 and airflow EH, 78 sound wave EH, 125,126 EH based on the impact of raindrop, [127][128][129] etc. It is one of the leading systems given its uncomplicated structure and high power-generation efficiency.…”

Section: Mechanismmentioning

confidence: 99%

Vibration energy harvesting: A review

et al. 2019

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This study is based on energy harvesting from vibration and deals with the comparison of different techniques. In the present scenario, energy harvesting has drawn the attention of researchers due to a rapid increase in the use of wireless and small-scale devices. So, there is a huge thirst among scientists to develop permanent portable power sources. In the surroundings, a lot of unutilized energy is wasted which can be collected and used for power generation. Research works have been extensively carried out to develop energy harvesting devices catering to the increasing needs of being efficient and economical. Effective energy harvesting mainly depends on the design of the transducer. Different types of design techniques, material properties, and availability of energy harvesters are reviewed in this paper. The paper aims to explore the advantages and limitations of different energy harvesting principles, advances, and findings of the recent past. This study also discusses some of the key ideas for the enhancement of power output. This paper provides a broad view of the energy harvesting system to the learners, which will facilitate them to design more efficient energy harvesting devices by using different principles.

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“…The output power is just enough for low power applications like charging batteries and lighting a single LED. But when a transducer excited by its resonant frequency, it can generate high voltage output, as can be seen in the study of Fang, Hassan, Rahim, Isa, and Ismail [7].…”

Section: Introductionmentioning

confidence: 99%

Noise Energy Harvester: Analysis and classification of frequency produced by boat engine

Opada¹,

Maravillas²,

Aliac³

2020

Ijasc

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Background/Objectives: A resonator plays a significant part in harnessing sound waves. An idea to use a resonator that only resonates on a specific frequency is hypothesized to harness sound efficiently. The primary objective of this study is to investigate the noise present in the boat engine room and be able to classify its resonant frequency and to know which of these frequencies occur most often. Methods/Statistical analysis: By using a sound recorder and a sound pressure level meter, the sound recorded from the idle state of the boat to disembarking and upon reaching the destination. Findings: Fast Fourier transform is applied to extract the frequencies of the recorded sound. Then the frequencies are evaluated using the Davies-Bouldin index to estimate the number of clusters and K-means clustering to classify the frequencies. Improvements/Applications: There are 2 clusters found and that Cluster 1 frequencies are from 17 Hz to 3295 Hz. Cluster 2 frequencies are from 6291 Hz to 8279 Hz. Among the available frequencies, 47 Hz, 155 Hz, and 186 Hz out weight all of the frequencies in terms of their occurrence, and among the three frequencies, 186 Hz has the highest amplitude.

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Exploring Piezoelectric for Sound Wave as Energy Harvester

Cited by 20 publications

References 20 publications

Investigating the influence of the viscoelastic material as a heart muscle simulator on the powering leadless pacemaker from heartbeats by using a piezoelectric beam

Investigating the influence of the viscoelastic material as a heart muscle simulator on the powering leadless pacemaker from heartbeats by using a piezoelectric beam

Vibration energy harvesting: A review

Noise Energy Harvester: Analysis and classification of frequency produced by boat engine

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