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Generating characteristics of hollow-plate-type piezoelectric energy harvesters

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Abstract

The output power of a piezoelectric energy harvester is not enough for it to be used as an electrical power source. Three kinds of harvesters were proposed to improve the output power of the piezoelectric harvester. Square, circle, and hexagon-shaped harvesters were analyzed and were examined under the same conditions. The hollow piezoelectric ceramics were attached to metalplate elastic bodies with the above three shaped. This structure has a merit in that it lessens the stress on the ceramics when vibrations are applied at the center of the elastic body. The power generating characteristics of piezoelectric energy-harvesting devices were simulated using a finite-element program. Based on the analysis results, harvesters were fabricated and examined. The power generating characteristics of the fabricated harvesters were compared with the analysis results.

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Authors and Affiliations

  1. Department of Electrical Engineering, Changwon National University, Changwon, 641-773, Korea

    Na-Lee Kim, Seong-Su Jeong, Seong-Kyu Cheon & Tae-Gone Park

  2. Department of Nano & Advanced Materials Engineering, Changwon National University, Changwon, 641-773, Korea

    Myong-Ho Kim

Authors
  1. Na-Lee Kim
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  2. Seong-Su Jeong
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  3. Seong-Kyu Cheon
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  4. Tae-Gone Park
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  5. Myong-Ho Kim
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Corresponding author

Correspondence to Tae-Gone Park.

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Kim, NL., Jeong, SS., Cheon, SK. et al. Generating characteristics of hollow-plate-type piezoelectric energy harvesters. Journal of the Korean Physical Society 63, 2310–2313 (2013). https://doi.org/10.3938/jkps.63.2310

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  • DOI: https://doi.org/10.3938/jkps.63.2310

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