An assessment of the effect of surface topography on coefficient of friction for lubricated non-conformal contacts
Determining an accurate state of lubrication is of utmost importance for the precise functionality of machine elements and to achieve elongated life and durability. In this work, a homogenized mixed-lubrication model is developed to study the effect of surface topographies on the coefficient of fric...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2024-01-01
|
| Series: | Frontiers in Mechanical Engineering |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmech.2024.1360023/full |
| _version_ | 1827368427539398656 |
|---|---|
| author | Deepak K. Prajapati Jonny Hansen Marcus Björling |
| author_facet | Deepak K. Prajapati Jonny Hansen Marcus Björling |
| author_sort | Deepak K. Prajapati |
| collection | DOAJ |
| description | Determining an accurate state of lubrication is of utmost importance for the precise functionality of machine elements and to achieve elongated life and durability. In this work, a homogenized mixed-lubrication model is developed to study the effect of surface topographies on the coefficient of friction. Various measured real surface topographies are integrated in the model using the roughness homogenization method. The shear-thinning behavior of the lubricant is incorporated by employing the Eyring constitutive relation. Several Stribeck curves are generated to analyze the effect of roughness lays and root mean square (RMS) roughness on the coefficient of friction. The homogenized mixed lubrication model is validated against experimental rolling/sliding ball-on-disc results, and a good agreement between simulated and experimental coefficient of friction is found. |
| first_indexed | 2024-03-08T09:31:15Z |
| format | Article |
| id | doaj.art-b6a626f611b6455db5a4eb945bfce6de |
| institution | Directory Open Access Journal |
| issn | 2297-3079 |
| language | English |
| last_indexed | 2024-03-08T09:31:15Z |
| publishDate | 2024-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Mechanical Engineering |
| spelling | doaj.art-b6a626f611b6455db5a4eb945bfce6de2024-01-31T04:19:31ZengFrontiers Media S.A.Frontiers in Mechanical Engineering2297-30792024-01-011010.3389/fmech.2024.13600231360023An assessment of the effect of surface topography on coefficient of friction for lubricated non-conformal contactsDeepak K. Prajapati0Jonny Hansen1Marcus Björling2Division of Machine Elements, Luleå University of Technology, Luleå, SwedenElectric Propulsion Development, Scania CV AB, Södertälje, SwedenDivision of Machine Elements, Luleå University of Technology, Luleå, SwedenDetermining an accurate state of lubrication is of utmost importance for the precise functionality of machine elements and to achieve elongated life and durability. In this work, a homogenized mixed-lubrication model is developed to study the effect of surface topographies on the coefficient of friction. Various measured real surface topographies are integrated in the model using the roughness homogenization method. The shear-thinning behavior of the lubricant is incorporated by employing the Eyring constitutive relation. Several Stribeck curves are generated to analyze the effect of roughness lays and root mean square (RMS) roughness on the coefficient of friction. The homogenized mixed lubrication model is validated against experimental rolling/sliding ball-on-disc results, and a good agreement between simulated and experimental coefficient of friction is found.https://www.frontiersin.org/articles/10.3389/fmech.2024.1360023/fullmixed-lubricationcoefficient of frictionsurface roughness layroughness homogenizationshear thinningtwo-scale modeling |
| spellingShingle | Deepak K. Prajapati Jonny Hansen Marcus Björling An assessment of the effect of surface topography on coefficient of friction for lubricated non-conformal contacts Frontiers in Mechanical Engineering mixed-lubrication coefficient of friction surface roughness lay roughness homogenization shear thinning two-scale modeling |
| title | An assessment of the effect of surface topography on coefficient of friction for lubricated non-conformal contacts |
| title_full | An assessment of the effect of surface topography on coefficient of friction for lubricated non-conformal contacts |
| title_fullStr | An assessment of the effect of surface topography on coefficient of friction for lubricated non-conformal contacts |
| title_full_unstemmed | An assessment of the effect of surface topography on coefficient of friction for lubricated non-conformal contacts |
| title_short | An assessment of the effect of surface topography on coefficient of friction for lubricated non-conformal contacts |
| title_sort | assessment of the effect of surface topography on coefficient of friction for lubricated non conformal contacts |
| topic | mixed-lubrication coefficient of friction surface roughness lay roughness homogenization shear thinning two-scale modeling |
| url | https://www.frontiersin.org/articles/10.3389/fmech.2024.1360023/full |
| work_keys_str_mv | AT deepakkprajapati anassessmentoftheeffectofsurfacetopographyoncoefficientoffrictionforlubricatednonconformalcontacts AT jonnyhansen anassessmentoftheeffectofsurfacetopographyoncoefficientoffrictionforlubricatednonconformalcontacts AT marcusbjorling anassessmentoftheeffectofsurfacetopographyoncoefficientoffrictionforlubricatednonconformalcontacts AT deepakkprajapati assessmentoftheeffectofsurfacetopographyoncoefficientoffrictionforlubricatednonconformalcontacts AT jonnyhansen assessmentoftheeffectofsurfacetopographyoncoefficientoffrictionforlubricatednonconformalcontacts AT marcusbjorling assessmentoftheeffectofsurfacetopographyoncoefficientoffrictionforlubricatednonconformalcontacts |