Fabrication and analysis of butterfly-type piezoelectric actuators

Won Hee Lee, Seok Jin Yoon, Chong Yun Kang, Hyeong Yup Lee, Yun Soo Lim, Byeong Kwon Ju, Dae Yong Jeong

Research output: Contribution to journalArticlepeer-review


A noble butterfly-type piezoelectric actuator was designed to meet the demand of a tiny motor in mobile devices. To predict the actuation motion, we utilized the ATILA software and investigated the effects of the material properties on the impedance spectrum and the elliptical displacement. The increase of mechanical loss made the impedance peaks broader and tilted the elliptical displacement leading to asymmetry along the directions of motion. However, the decrease in the piezoelectric constant and the increase in the dielectric loss gave information about the small peak and made the shape of the elliptical displacement closer to the measured result. Even though there is discrepancy in the magnitude of value, the simulation by revising the piezoelectric constant and the dielectric loss was more effective in predicting the actuation behavior of the butterfly-type actuator.

Original languageEnglish
Pages (from-to)882-886
Number of pages5
JournalJournal of the Korean Physical Society
Issue number6
Publication statusPublished - 2012 Sept

Bibliographical note

Funding Information:
This work was supported by the Seoul R&D Program (JP00034).


  • Butterfly
  • Piezoelectric actuator
  • Simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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