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Performance Analysis of a CSFH-Based Microgripper: Analytical Modeling and Simulation

Microgrippers are promising tools for micro-manipulation and characterization of cells. In this paper, a biocompatible electro-thermally actuated microgripper with rotary capacitive position sensor is presented. To overcome the limited displacement possibilities usually provided by electrothermal ac...

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Detalles Bibliográficos
Autores principales: Yallew, Teferi Sitotaw, Belfiore, Nicola Pio, Bagolini, Alvise, Pantano, Maria F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9502756/
https://www.ncbi.nlm.nih.gov/pubmed/36144014
http://dx.doi.org/10.3390/mi13091391
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author Yallew, Teferi Sitotaw
Belfiore, Nicola Pio
Bagolini, Alvise
Pantano, Maria F.
author_facet Yallew, Teferi Sitotaw
Belfiore, Nicola Pio
Bagolini, Alvise
Pantano, Maria F.
author_sort Yallew, Teferi Sitotaw
collection PubMed
description Microgrippers are promising tools for micro-manipulation and characterization of cells. In this paper, a biocompatible electro-thermally actuated microgripper with rotary capacitive position sensor is presented. To overcome the limited displacement possibilities usually provided by electrothermal actuators and to achieve the desired tweezers output displacement, conjugate surface flexure hinges (CSFH) are adopted. The microgripper herein reported can in principle manipulate biological samples in the size range between 15 and 120 µm. A kinematics modeling approach based on the pseudo-rigid-body-method (PRBM) is applied to describe the microgripper’s working mechanism, and analytical modeling, based on finite elements method (FEM), is used to optimize the electrothermal actuator design and the heat dissipation mechanism. Finally, FEM-based simulations are carried out to verify the microgripper, the electrothermal actuator and heat dissipation mechanism performance, and to assess the validity of the analytical modeling.
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spelling pubmed-95027562022-09-24 Performance Analysis of a CSFH-Based Microgripper: Analytical Modeling and Simulation Yallew, Teferi Sitotaw Belfiore, Nicola Pio Bagolini, Alvise Pantano, Maria F. Micromachines (Basel) Article Microgrippers are promising tools for micro-manipulation and characterization of cells. In this paper, a biocompatible electro-thermally actuated microgripper with rotary capacitive position sensor is presented. To overcome the limited displacement possibilities usually provided by electrothermal actuators and to achieve the desired tweezers output displacement, conjugate surface flexure hinges (CSFH) are adopted. The microgripper herein reported can in principle manipulate biological samples in the size range between 15 and 120 µm. A kinematics modeling approach based on the pseudo-rigid-body-method (PRBM) is applied to describe the microgripper’s working mechanism, and analytical modeling, based on finite elements method (FEM), is used to optimize the electrothermal actuator design and the heat dissipation mechanism. Finally, FEM-based simulations are carried out to verify the microgripper, the electrothermal actuator and heat dissipation mechanism performance, and to assess the validity of the analytical modeling. MDPI 2022-08-25 /pmc/articles/PMC9502756/ /pubmed/36144014 http://dx.doi.org/10.3390/mi13091391 Text en © 2022 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
Yallew, Teferi Sitotaw
Belfiore, Nicola Pio
Bagolini, Alvise
Pantano, Maria F.
Performance Analysis of a CSFH-Based Microgripper: Analytical Modeling and Simulation
title Performance Analysis of a CSFH-Based Microgripper: Analytical Modeling and Simulation
title_full Performance Analysis of a CSFH-Based Microgripper: Analytical Modeling and Simulation
title_fullStr Performance Analysis of a CSFH-Based Microgripper: Analytical Modeling and Simulation
title_full_unstemmed Performance Analysis of a CSFH-Based Microgripper: Analytical Modeling and Simulation
title_short Performance Analysis of a CSFH-Based Microgripper: Analytical Modeling and Simulation
title_sort performance analysis of a csfh-based microgripper: analytical modeling and simulation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9502756/
https://www.ncbi.nlm.nih.gov/pubmed/36144014
http://dx.doi.org/10.3390/mi13091391
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