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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...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2014
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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. |
format | Online Article Text |
id | pubmed-4099975 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT jacksonrobertl hydrodynamicallylubricatedandgroovedbiomimeticselfadaptingsurfaces AT leijiang hydrodynamicallylubricatedandgroovedbiomimeticselfadaptingsurfaces |