Energy harvesting from torsions of patterned piezoelectrics

Youngsu Cha, Hangil You

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


In this paper, we investigate the feasibility of energy harvesting from the torsions using a piezoelectric beam. The piezoelectric beam is partially patterned and is tested in an experimental setup to force pure torsional deformation. In particular, the beam consists of two identical piezoelectric parts attached on one side of a supporting substrate. We propose a model for the energy harvesting system through the equations for a slender composite beam with the physical properties and the electromechanical coupling equations of the piezoelectric material. The theoretical predictions are validated by the comparison with the experimental results.

Original languageEnglish
Title of host publicationActive and Passive Smart Structures and Integrated Systems XII
EditorsJae-Hung Han, Alper Erturk
ISBN (Electronic)9781510616868
Publication statusPublished - 2018
Externally publishedYes
EventActive and Passive Smart Structures and Integrated Systems XII 2018 - Denver, United States
Duration: 2018 Mar 52018 Mar 8

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceActive and Passive Smart Structures and Integrated Systems XII 2018
Country/TerritoryUnited States

Bibliographical note

Funding Information:
This work was supported by the KIST flagship program (Project No.

Publisher Copyright:
© 2018 SPIE.


  • Energy harvesting
  • patterned surface
  • piezoelectric material
  • torsion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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