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Power Output Characteristics of an Modified Piezoelectric Energy Harvester
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압전 발전소자의 변형모델에 따른 출력특성

논문 기본 정보

Type
Academic journal
Author
Journal
The Korean Institute of Electrical and Electronic Material Engineers 전기전자재료학회논문지 전기전자재료학회논문지 제29권 제12호 KCI Accredited Journals
Published
2016.1
Pages
776 - 780 (5page)

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Power Output Characteristics of an Modified Piezoelectric Energy Harvester
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Abstract· Keywords

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Recently, energy harvesting technology is increasing due to the fossil fuel shortages. To compensate problem of low generating power than other energy harvesters, many researchers have studied about piezoelectric harvester for obtaining high output. In this paper, four kinds of unimorph based piezoelectric harvesters were proposed and its generating characteristics were studied. Each of the piezoelectric harvesters has three, four, and six unimorph arms, respectively, and the arms are symmetrically arranged from one central point. The centrosymmetric structure of the harvesters guarantees more stable and multiplied generation than a cantilever-type harvester since the arms of the harvester resonate at same frequency. Resonance frequency, output voltage, displacement, and stress characteristics of the generator were analyzed by using a FEM (finite element method) program. Harvesters were fabricated on the basis of analysis results. Experimental results were compared with simulated results.
#Piezoelectric energy harvester #Unimorph #Centrosymmetric structure #FEM

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References (10)

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J. L. Gonzalez / 2001 / Int. J. Soc. Mater. Eng 49:7 google schola H. I. Jun / 2008 / J. Korean Inst. Electr. Electron. Mater. Eng 9:129 google schola 김용혁 / 2010 / 유니몰프 압전소자를 이용한 발전 판넬의 출력특성에 관한 연구 / 전기전자재료학회논문지 23(3):250~259 dbpia C. H. Park / 2011 / App. Mech. Mater 2:217 Crossref J. H. Lim / 2012 / J. Electroceram 10:1007 google schola

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