Power estimation for piezoelectric energy harvesters in flexure mode with large displacement amplitude

Motoaki Hara, L. V. Minh, H. Oguchi, H. Kuwano

Research output: Contribution to journalConference article

Abstract

We propose a new method to estimate the output power from piezoelectric energy harvesters using flexure mode of the cantilever. In the energy harvester, displacement amplitude is too large for Bernoulli-Euler hypothesis to hold true. Hence, it is not easy to derive a theoretical solution of output power. In this study, applying the correction coefficient which is a function of flexure rigidity to a conventional theoretical solution, simple equation to estimate the output power was derived. This equation was applied to design a practical (K,Na)NbO3 based energy harvester. Measured output from the harvester was in good agreement with the calculated value.

Original languageEnglish
Article number012024
JournalJournal of Physics: Conference Series
Volume476
Issue number1
DOIs
Publication statusPublished - 2013 Jan 1
Event13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2013 - London, United Kingdom
Duration: 2013 Dec 32013 Dec 6

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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