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Dynamic Model of a Conjugate-Surface Flexure Hinge Considering Impacts between Cylinders

A dynamic model of a Conjugate-Surface Flexure Hinge (CSFH) has been proposed as a component for MEMS/NEMS Technology-based devices with lumped compliance. However, impacts between the conjugate surfaces have not been studied yet and, therefore, this paper attempts to fill this gap by proposing a de...

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Autores principales: Cammarata, Alessandro, Maddìo, Pietro Davide, Sinatra, Rosario, Rossi, Andrea, Belfiore, Nicola Pio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9230761/
https://www.ncbi.nlm.nih.gov/pubmed/35744570
http://dx.doi.org/10.3390/mi13060957
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author Cammarata, Alessandro
Maddìo, Pietro Davide
Sinatra, Rosario
Rossi, Andrea
Belfiore, Nicola Pio
author_facet Cammarata, Alessandro
Maddìo, Pietro Davide
Sinatra, Rosario
Rossi, Andrea
Belfiore, Nicola Pio
author_sort Cammarata, Alessandro
collection PubMed
description A dynamic model of a Conjugate-Surface Flexure Hinge (CSFH) has been proposed as a component for MEMS/NEMS Technology-based devices with lumped compliance. However, impacts between the conjugate surfaces have not been studied yet and, therefore, this paper attempts to fill this gap by proposing a detailed multibody system (MBS) model that includes not only rigid-body dynamics but also elastic forces, friction, and impacts. Two models based on the Lankarani-Nikravesh constitutive law are first recalled and a new model based on the contact of cylinders is proposed. All three models are complemented by the friction model proposed by Ambrosìo. Then, the non-smooth Moreau time-stepping scheme with Coulomb friction is described. The four models are compared in different scenarios and the results confirm that the proposed model outcomes comply with the most reliable models.
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spelling pubmed-92307612022-06-25 Dynamic Model of a Conjugate-Surface Flexure Hinge Considering Impacts between Cylinders Cammarata, Alessandro Maddìo, Pietro Davide Sinatra, Rosario Rossi, Andrea Belfiore, Nicola Pio Micromachines (Basel) Article A dynamic model of a Conjugate-Surface Flexure Hinge (CSFH) has been proposed as a component for MEMS/NEMS Technology-based devices with lumped compliance. However, impacts between the conjugate surfaces have not been studied yet and, therefore, this paper attempts to fill this gap by proposing a detailed multibody system (MBS) model that includes not only rigid-body dynamics but also elastic forces, friction, and impacts. Two models based on the Lankarani-Nikravesh constitutive law are first recalled and a new model based on the contact of cylinders is proposed. All three models are complemented by the friction model proposed by Ambrosìo. Then, the non-smooth Moreau time-stepping scheme with Coulomb friction is described. The four models are compared in different scenarios and the results confirm that the proposed model outcomes comply with the most reliable models. MDPI 2022-06-16 /pmc/articles/PMC9230761/ /pubmed/35744570 http://dx.doi.org/10.3390/mi13060957 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
Cammarata, Alessandro
Maddìo, Pietro Davide
Sinatra, Rosario
Rossi, Andrea
Belfiore, Nicola Pio
Dynamic Model of a Conjugate-Surface Flexure Hinge Considering Impacts between Cylinders
title Dynamic Model of a Conjugate-Surface Flexure Hinge Considering Impacts between Cylinders
title_full Dynamic Model of a Conjugate-Surface Flexure Hinge Considering Impacts between Cylinders
title_fullStr Dynamic Model of a Conjugate-Surface Flexure Hinge Considering Impacts between Cylinders
title_full_unstemmed Dynamic Model of a Conjugate-Surface Flexure Hinge Considering Impacts between Cylinders
title_short Dynamic Model of a Conjugate-Surface Flexure Hinge Considering Impacts between Cylinders
title_sort dynamic model of a conjugate-surface flexure hinge considering impacts between cylinders
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9230761/
https://www.ncbi.nlm.nih.gov/pubmed/35744570
http://dx.doi.org/10.3390/mi13060957
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