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Hydrodynamically Lubricated and Grooved Biomimetic Self-Adapting Surfaces

In many machines and mechanical components, there is a need for new bearing technologies to reduce friction and wear, and provide precision control of motion when the load is varied. This can be provided by electronically controlled actuators and sensors on the surfaces, but then the system reliabil...

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Detalles Bibliográficos
Autores principales: Jackson, Robert L., Lei, Jiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4099975/
https://www.ncbi.nlm.nih.gov/pubmed/24956441
http://dx.doi.org/10.3390/jfb5020078
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author Jackson, Robert L.
Lei, Jiang
author_facet Jackson, Robert L.
Lei, Jiang
author_sort Jackson, Robert L.
collection PubMed
description In many machines and mechanical components, there is a need for new bearing technologies to reduce friction and wear, and provide precision control of motion when the load is varied. This can be provided by electronically controlled actuators and sensors on the surfaces, but then the system reliability can be an issue. In contrast, biomimetic surfaces can be created that adapt mechanically to variations in load. This work uses numerical methods to research the use of self-adapting surfaces for bearings that are based on the deformable nature of biological materials such as articular cartilage. These surfaces are designed to change their profiles to achieve a desired behavior, without any external control. The surfaces change their profile to control the film height and tilt of the bearing to a near constant value for different loads. If the surfaces are tilted, the grooved self-adapting surfaces will also react with a larger restoring moment than a conventional grooved surface. These surfaces could be beneficial to applications where electrical systems and controls are not feasible.
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spelling pubmed-40999752014-07-16 Hydrodynamically Lubricated and Grooved Biomimetic Self-Adapting Surfaces Jackson, Robert L. Lei, Jiang J Funct Biomater Article In many machines and mechanical components, there is a need for new bearing technologies to reduce friction and wear, and provide precision control of motion when the load is varied. This can be provided by electronically controlled actuators and sensors on the surfaces, but then the system reliability can be an issue. In contrast, biomimetic surfaces can be created that adapt mechanically to variations in load. This work uses numerical methods to research the use of self-adapting surfaces for bearings that are based on the deformable nature of biological materials such as articular cartilage. These surfaces are designed to change their profiles to achieve a desired behavior, without any external control. The surfaces change their profile to control the film height and tilt of the bearing to a near constant value for different loads. If the surfaces are tilted, the grooved self-adapting surfaces will also react with a larger restoring moment than a conventional grooved surface. These surfaces could be beneficial to applications where electrical systems and controls are not feasible. MDPI 2014-06-04 /pmc/articles/PMC4099975/ /pubmed/24956441 http://dx.doi.org/10.3390/jfb5020078 Text en © 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Jackson, Robert L.
Lei, Jiang
Hydrodynamically Lubricated and Grooved Biomimetic Self-Adapting Surfaces
title Hydrodynamically Lubricated and Grooved Biomimetic Self-Adapting Surfaces
title_full Hydrodynamically Lubricated and Grooved Biomimetic Self-Adapting Surfaces
title_fullStr Hydrodynamically Lubricated and Grooved Biomimetic Self-Adapting Surfaces
title_full_unstemmed Hydrodynamically Lubricated and Grooved Biomimetic Self-Adapting Surfaces
title_short Hydrodynamically Lubricated and Grooved Biomimetic Self-Adapting Surfaces
title_sort hydrodynamically lubricated and grooved biomimetic self-adapting surfaces
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4099975/
https://www.ncbi.nlm.nih.gov/pubmed/24956441
http://dx.doi.org/10.3390/jfb5020078
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