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- W3048563575 abstract "In this paper we investigate the elastohydrodynamic (EHD) lubrication in ball bearings by means of a digital twin. Based on an original description involving the discrete element method (DEM), the digital twin integrates all the components of ball bearings and enables realistic behavior under mechanical loading and kinematic conditions. In order to check the standard indicators recommended by most ball bearing manufactures, a stiffness model for elliptical Hertzian contact and an improved EHD formulation for lubricated contact are implemented in the numerical tool. In addition, we have introduced into the discrete modeling an electrical capacitance model correlated to the fluid film thickness and the contact pressure. The numerical predictions of lubricant film capacitance provided by digital twin are in good accordance, both qualitatively and quantitatively, with the experimental data available in the literature. The coupling of the discrete method with the electrical approach enables efficient solutions to be provided in terms of lubrication regime in relation to the lubricant properties to optimize the bearing lifetime." @default.
- W3048563575 created "2020-08-18" @default.
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- W3048563575 date "2020-01-01" @default.
- W3048563575 modified "2023-10-11" @default.
- W3048563575 title "Digital twin by DEM for ball bearing operating under EHD conditions" @default.
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- W3048563575 doi "https://doi.org/10.1051/meca/2020022" @default.
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