Cargando…

Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment

To align a pair of optical fibers, it is required that the micro actuators used be small and have the characteristics of high accuracy and fast response time. A trapezoidal piezoelectric bimorph actuator was proposed for pushing and pulling an optical fiber. Based on a mathematical model and finite...

Descripción completa

Detalles Bibliográficos
Autores principales: Wang, Xinjie, Li, Jianhui, Lu, Xingfan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488945/
https://www.ncbi.nlm.nih.gov/pubmed/37687504
http://dx.doi.org/10.3390/ma16175811
_version_ 1785103596673564672
author Wang, Xinjie
Li, Jianhui
Lu, Xingfan
author_facet Wang, Xinjie
Li, Jianhui
Lu, Xingfan
author_sort Wang, Xinjie
collection PubMed
description To align a pair of optical fibers, it is required that the micro actuators used be small and have the characteristics of high accuracy and fast response time. A trapezoidal piezoelectric bimorph actuator was proposed for pushing and pulling an optical fiber. Based on a mathematical model and finite element model established in this paper, we analyzed the output displacement and output force of the proposed trapezoidal piezoelectric actuator under the influence of structural parameters. Since the piezoelectric bimorph actuator had a hysteresis effect, we applied particle swarm optimization to establish a Prandtl–Ishlinskii (PI) model for actuator and parameter identification. Then, two control methods, namely feedforward control considering hysteresis effects and fuzzy proportional-integral-derivative (PID) control employing feedback, were proposed. Finally, a composite control model combining the two control methods with fewer tracking errors was designed. The results show that the output displacement of this actuator is larger than that of a rectangular one. Additionally, the fuzzy PID control has a lower response time (15 ms) and an overshoot (5%).
format Online
Article
Text
id pubmed-10488945
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-104889452023-09-09 Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment Wang, Xinjie Li, Jianhui Lu, Xingfan Materials (Basel) Article To align a pair of optical fibers, it is required that the micro actuators used be small and have the characteristics of high accuracy and fast response time. A trapezoidal piezoelectric bimorph actuator was proposed for pushing and pulling an optical fiber. Based on a mathematical model and finite element model established in this paper, we analyzed the output displacement and output force of the proposed trapezoidal piezoelectric actuator under the influence of structural parameters. Since the piezoelectric bimorph actuator had a hysteresis effect, we applied particle swarm optimization to establish a Prandtl–Ishlinskii (PI) model for actuator and parameter identification. Then, two control methods, namely feedforward control considering hysteresis effects and fuzzy proportional-integral-derivative (PID) control employing feedback, were proposed. Finally, a composite control model combining the two control methods with fewer tracking errors was designed. The results show that the output displacement of this actuator is larger than that of a rectangular one. Additionally, the fuzzy PID control has a lower response time (15 ms) and an overshoot (5%). MDPI 2023-08-24 /pmc/articles/PMC10488945/ /pubmed/37687504 http://dx.doi.org/10.3390/ma16175811 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Xinjie
Li, Jianhui
Lu, Xingfan
Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment
title Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment
title_full Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment
title_fullStr Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment
title_full_unstemmed Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment
title_short Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment
title_sort design and control of a trapezoidal piezoelectric bimorph actuator for optical fiber alignment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488945/
https://www.ncbi.nlm.nih.gov/pubmed/37687504
http://dx.doi.org/10.3390/ma16175811
work_keys_str_mv AT wangxinjie designandcontrolofatrapezoidalpiezoelectricbimorphactuatorforopticalfiberalignment
AT lijianhui designandcontrolofatrapezoidalpiezoelectricbimorphactuatorforopticalfiberalignment
AT luxingfan designandcontrolofatrapezoidalpiezoelectricbimorphactuatorforopticalfiberalignment