A low-profile flexural displacement-converter mechanism for piezoelectric stack actuators

Farnaz Tajdari*, Arthur P. Berkhoff, Mark Naves, Marijn Nijenhuis, A. de Boer

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

A thin flexure-based mechanism is proposed that is useful in applications with limited build space. The proposed mechanism converts the initial in-plane motion of two piezoelectric stack actuators to an out-of-plane translational motion. Two actuators in the symmetric design of the proposed APA can be used to ensure a pure translation output motion. A Finite Element (FE) model is used to analyze the rigid multibody model of the proposed mechanism. The rigid multibody model is used to design the desired flexural mechanism in a three-dimensional space. The proposed design is then manufactured and is subjected to an experimental study. Measurements validate the performance of the proposed design with an error of less than 15%. A parametric study on the effect of the applied voltage to the actuators of the proposed mechanism reveals good agreement between the numerical model and the manufactured mechanism.
Original languageEnglish
Article number112198
JournalSensors and Actuators, A: Physical
Volume313
DOIs
Publication statusPublished - 1 Oct 2020

Keywords

  • UT-Hybrid-D

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