Skip to main navigation Skip to search Skip to main content

Prediction of actuation displacement and force of a pre-stressed piezoelectric unimorph, pumps considering internal stress effects

  • Lae Hyong Kang*
  • , Jong Won Lee
  • , Jae Hung Han
  • , Sang Joon Chung
  • , Han Young Ko
  • *Corresponding author for this work
  • Korea Advanced Institute of Science and Technology
  • Korean Agency for Defense Development

Research output: Contribution to conferenceConference paperpeer-review

Abstract

Pre-stressed piezoelectric unimorphs are widely used in many engineering field due to their good actuation performances. They are manufactured by using stress mismatch of adjacent layers, which results in the domed shape and internal stress profile of the piezoelectric layer. The internal stress of the piezoelectric layer can affect the actuation performance of the pre-stressed piezoelectric unimorph significantly. This paper investigates the effect of mechanical pre-stress on the piezoelectric actuation characteristics, and evaluated the actuation performance of a new pre-stressed actuator developed by the present authors, PUMPS, considering the internal stress effects.

Original languageEnglish
Title of host publicationProceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems 2009, SMASIS2009
Pages61-69
Number of pages9
DOIs
StatePublished - 2009
Event2009 ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2009 - Oxnard, CA, United States
Duration: 2009.09.212009.09.23

Publication series

NameProceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems 2009, SMASIS2009
Volume1

Conference

Conference2009 ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2009
Country/TerritoryUnited States
CityOxnard, CA
Period09.09.2109.09.23

Fingerprint

Dive into the research topics of 'Prediction of actuation displacement and force of a pre-stressed piezoelectric unimorph, pumps considering internal stress effects'. Together they form a unique fingerprint.

Cite this