Behaviors and performance evaluation of a lightweight piezo-composite curved actuator

Nam Seo Goo; Cheol Kim; Young Doo Kwon; Kwang Joon Yoon

doi:10.1177/10453890122145429

Behaviors and performance evaluation of a lightweight piezo-composite curved actuator

Nam Seo Goo, Cheol Kim, Young Doo Kwon, Kwang Joon Yoon

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

The present study investigates the behavior and performance of the recently proposed LIPCA actuator. As such, a reliable finite element program that can predict the behavior of piezoelectric structures is developed based on fully-coupled formulations for piezo electric materials and three-dimensional eight-node incompatible elements. After verifying the proposed code, the actuation displacements of a LIPCA actuator are calculated and compared with experimental results, which were found to be in good agreement. Finally, a method for modeling the screw-fixed end condition used in the experimental apparatus is investigated along with effects of the curvature on the actuation displacement and fundamental frequency.

Original language	English
Pages (from-to)	639-646
Number of pages	8
Journal	Journal of Intelligent Material Systems and Structures
Volume	12
Issue number	9
DOIs	https://doi.org/10.1177/10453890122145429
State	Published - 2001

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abstract = "The present study investigates the behavior and performance of the recently proposed LIPCA actuator. As such, a reliable finite element program that can predict the behavior of piezoelectric structures is developed based on fully-coupled formulations for piezo electric materials and three-dimensional eight-node incompatible elements. After verifying the proposed code, the actuation displacements of a LIPCA actuator are calculated and compared with experimental results, which were found to be in good agreement. Finally, a method for modeling the screw-fixed end condition used in the experimental apparatus is investigated along with effects of the curvature on the actuation displacement and fundamental frequency.",

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AB - The present study investigates the behavior and performance of the recently proposed LIPCA actuator. As such, a reliable finite element program that can predict the behavior of piezoelectric structures is developed based on fully-coupled formulations for piezo electric materials and three-dimensional eight-node incompatible elements. After verifying the proposed code, the actuation displacements of a LIPCA actuator are calculated and compared with experimental results, which were found to be in good agreement. Finally, a method for modeling the screw-fixed end condition used in the experimental apparatus is investigated along with effects of the curvature on the actuation displacement and fundamental frequency.

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Behaviors and performance evaluation of a lightweight piezo-composite curved actuator

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