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

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

doi:10.1016/j.sna.2020.112198

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

Applied Mechanics

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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 language	English
Article number	112198
Journal	Sensors and Actuators A: Physical
Volume	313
Early online date	17 Jul 2020
DOIs	https://doi.org/10.1016/j.sna.2020.112198
Publication status	Published - 1 Oct 2020

Keywords

UT-Hybrid-D
22/2 OA procedure

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10.1016/j.sna.2020.112198

1-s2.0-S0924424719319351-main-2Final published version, 3.52 MBLicence: Taverne

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title = "A low-profile flexural displacement-converter mechanism for piezoelectric stack actuators",

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.",

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AU - Tajdari, Farnaz

AU - Berkhoff, Arthur P.

AU - Naves, Mark

AU - Nijenhuis, Marijn

AU - de Boer, A.

N1 - Elsevier deal

PY - 2020/10/1

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N2 - 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.

AB - 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.

KW - UT-Hybrid-D

KW - 22/2 OA procedure

U2 - 10.1016/j.sna.2020.112198

DO - 10.1016/j.sna.2020.112198

M3 - Article

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JO - Sensors and Actuators A: Physical

JF - Sensors and Actuators A: Physical

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

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Keywords

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