Modeling of piezoelectric energy harvesting using cymbal transducers

Hyeoungwoo Kim, Shashank Priya, Kenji Uchino

Research output: Contribution to journalArticlepeer-review

97 Scopus citations


This study reports the experimental and analytical results on a piezoelectric cymbal with 29 mm diameter and 1 mm thickness operating under force of 70 N in the frequency range of 10-200 Hz. It was found that the generated power increases with the frequency and around 100mW can be harvested at frequency of 200 Hz across a 200 kΩ resistor. Power generation from the cymbal transducer was modeled by using the theory developed for the Belleville spring. The calculated results were found to be in good agreement with the experimental results. The results indicate that the metal-ceramic composite transducer "CYMBAL" is the most promising structure for harvesting the electric energy from automobile engine vibrations. The metal cap enhances the endurance of the ceramic to sustain high loads along with stress amplification.

Original languageEnglish (US)
Pages (from-to)5836-5840
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number7
StatePublished - Jul 7 2006
Externally publishedYes


  • Cymbal transducer
  • Piezoelectric energy harvesting
  • Piezoelectric generator


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