Dynamically induced friction reduction in micro-structured interfaces

Abstract We investigate the dynamic behavior of a regular array of in-plane elastic supports interposed between a sliding rigid body and a rigid substrate. Each support is modelled as a mass connected to a fixed pivot by means of radial and tangential elastic elements. Frictional interactions are co...

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Autores principales:	N. Menga, F. Bottiglione, G. Carbone
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2878207db4e745389efa9888bbde5f1b
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spelling	oai:doaj.org-article:2878207db4e745389efa9888bbde5f1b2021-12-02T15:51:14ZDynamically induced friction reduction in micro-structured interfaces10.1038/s41598-021-87484-52045-2322https://doaj.org/article/2878207db4e745389efa9888bbde5f1b2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87484-5https://doaj.org/toc/2045-2322Abstract We investigate the dynamic behavior of a regular array of in-plane elastic supports interposed between a sliding rigid body and a rigid substrate. Each support is modelled as a mass connected to a fixed pivot by means of radial and tangential elastic elements. Frictional interactions are considered at the interface between the supports and the sliding body. Depending on the specific elastic properties of the supports, different dynamic regimes can be achieved, which, in turn, affect the system frictional behavior. Specifically, due to transverse microscopic vibration of the supports, a lower friction force opposing the macroscopic motion of the rigid body can be achieved compared to the case where no supports are present and rubbing occurs with the substrate. Furthermore, we found that the supports static orientation plays a key role in determining the frictional interactions, thus offering the chance to specifically design the array aiming at controlling the resulting interfacial friction force.N. MengaF. BottiglioneG. CarboneNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q N. Menga F. Bottiglione G. Carbone Dynamically induced friction reduction in micro-structured interfaces
description	Abstract We investigate the dynamic behavior of a regular array of in-plane elastic supports interposed between a sliding rigid body and a rigid substrate. Each support is modelled as a mass connected to a fixed pivot by means of radial and tangential elastic elements. Frictional interactions are considered at the interface between the supports and the sliding body. Depending on the specific elastic properties of the supports, different dynamic regimes can be achieved, which, in turn, affect the system frictional behavior. Specifically, due to transverse microscopic vibration of the supports, a lower friction force opposing the macroscopic motion of the rigid body can be achieved compared to the case where no supports are present and rubbing occurs with the substrate. Furthermore, we found that the supports static orientation plays a key role in determining the frictional interactions, thus offering the chance to specifically design the array aiming at controlling the resulting interfacial friction force.
format	article
author	N. Menga F. Bottiglione G. Carbone
author_facet	N. Menga F. Bottiglione G. Carbone
author_sort	N. Menga
title	Dynamically induced friction reduction in micro-structured interfaces
title_short	Dynamically induced friction reduction in micro-structured interfaces
title_full	Dynamically induced friction reduction in micro-structured interfaces
title_fullStr	Dynamically induced friction reduction in micro-structured interfaces
title_full_unstemmed	Dynamically induced friction reduction in micro-structured interfaces
title_sort	dynamically induced friction reduction in micro-structured interfaces
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2878207db4e745389efa9888bbde5f1b
work_keys_str_mv	AT nmenga dynamicallyinducedfrictionreductioninmicrostructuredinterfaces AT fbottiglione dynamicallyinducedfrictionreductioninmicrostructuredinterfaces AT gcarbone dynamicallyinducedfrictionreductioninmicrostructuredinterfaces
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Dynamically induced friction reduction in micro-structured interfaces

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