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Simulation of acoustic energy harvester using helmholtz resonator with piezoelectric backplate

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dc.citedby14
dc.contributor.authorAtrah A.B.en_US
dc.contributor.authorSalleh H.en_US
dc.contributor.authorid56088179800en_US
dc.contributor.authorid24067645400en_US
dc.date.accessioned2023-12-28T04:12:57Z
dc.date.available2023-12-28T04:12:57Z
dc.date.issued2013
dc.description.abstractAn acoustic energy harvester using piezoelectric backplate has been studied numerically using COMSOL Multiphysics 4.3. There are many research activities focusing on harvesting various environmental energies. However, acoustic energy harvesting has seldom been studied. In this study, a Helmholtz Resonator is used to collect travelling acoustic waves at frequencies of 3500 to 4500Hz. Piezoelectric ring made of Lead Zirconate Titanate (PZT) is connected with silicone membrane. At the resonance of the Helmholtz Resonator, amplified resonant acoustic standing waves are developed inside the cavity. The pressure difference between the walls drive the vibration motion of the membrane backplate and that leads to generate an electrical power via the direct piezoelectric effect. In COMSOL, the 2D Acoustic-Piezoelectric physics has been used for a frequency domain analysis. Background acoustic pressure is used to simulate an incident plane wave which acoustically excites the membrane. The material properties are also included in simulations to consider sound leakage through resonator walls. The resonance behaviour of the Helmholtz Resonator with the piezoelectric backplate has been studied. The neck radius has been swept with 1 urn interval to investigate the output voltage. When using a parameter sweep for neck length from 50 ?m to 150 ?m, it was found that at 3.5 kHz maximum output voltage was 1.3 mV. In conclusion, the numerical studies of acoustic resonance behaviour of the Helmholtz Resonator with piezoelectric backplate are performed using COMSOL Multiphysics. The harvested voltage and power have been calculated and compared to previous works.en_US
dc.description.natureFinalen_US
dc.identifier.epage37
dc.identifier.scopus2-s2.0-84894498159
dc.identifier.spage30
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84894498159&partnerID=40&md5=bd961e0e2a94d1422b61cfd4ce3f4d1b
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/29408
dc.identifier.volume1
dc.pagecount7
dc.publisherInternational Institute of Acoustics and Vibrationsen_US
dc.sourceScopus
dc.sourcetitle20th International Congress on Sound and Vibration 2013, ICSV 2013
dc.subjectAcoustics
dc.subjectElastic waves
dc.subjectEnergy harvesting
dc.subjectFrequency domain analysis
dc.subjectResonance
dc.subjectSemiconducting lead compounds
dc.subjectSilicones
dc.subjectAcoustic energy harvesting
dc.subjectDirect piezoelectric effects
dc.subjectEnvironmental energy
dc.subjectHelmholtz resonators
dc.subjectLead zirconate titanate
dc.subjectPiezoelectric rings
dc.subjectPressure differences
dc.subjectResearch activities
dc.subjectPiezoelectricity
dc.titleSimulation of acoustic energy harvester using helmholtz resonator with piezoelectric backplateen_US
dc.typeConference paperen_US
dspace.entity.typePublication
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