Influence of spin on film thickness in elastohydrodynamic starved point contacts
| Autor: | Seoudi, Tarek, Lafarge, Lionel, Devaux, Nicolas, Mondelin, Alexandre, Porras-Vazquez, Alberto, Fillot, Nicolas, Vergne, Philippe, Philippon, David, Morales-Espejel, Guillermo |
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| Přispěvatelé: | Tribologie et Mécanique des Interfaces (TMI), Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), SKF - Aerospace [Saint-Vallier], SKF, SKF Engineeing and Research Centre (SKF-ERC) |
| Rok vydání: | 2021 |
| Předmět: |
[SPI.OTHER]Engineering Sciences [physics]/Other
Work (thermodynamics) Materials science Mechanical Engineering 02 engineering and technology Surfaces and Interfaces Kinematics Mechanics Flange 021001 nanoscience & nanotechnology Curvature Isothermal process Surfaces Coatings and Films 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Newtonian fluid 0210 nano-technology Spin (aerodynamics) Spinning ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Tribology International Tribology International, Elsevier, 2021, 156 (3), pp.106825. ⟨10.1016/j.triboint.2020.106825⟩ |
| ISSN: | 0301-679X |
| DOI: | 10.1016/j.triboint.2020.106825 |
| Popis: | The roller-end/flange contact in rolling-element bearings represents a crucial design point. Some of the main aspects defining the contact are its particular kinematics, integrating spinning and the occurrence of starved conditions, due to high curvature radii of the region. In the present study, we present the equations characterizing both spinning and starvation in isothermal EHD contacts lubricated by a Newtonian fluid. After the validation of the model for the case without spin, the analysis focuses, firstly, on characterizing the influence of spinning on the film thickness profile, particularly its global minimum film thickness. Secondly, it aims to evaluate how spinning interacts with starvation in circular contacts, quantifying its effects on the film thickness. Finally, this work provides analytical expressions to predict film thickness in such specific operating conditions. |
| Databáze: | OpenAIRE |
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