Wear simulation in lubricated contacts considering wear-dependent surface topography changes

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Wear simulation in lubricated contacts considering wear-dependent surface topography changes. / Maier, Michael; Pusterhofer, Michael; Grün, Florian.
In: Materials Today: Proceedings, Vol. 93.2023, No. 4, 18.02.2023, p. 563-570.

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@article{83386fec10d443e78ff702b7f50fd807,
title = "Wear simulation in lubricated contacts considering wear-dependent surface topography changes",
abstract = "Along with friction, wear in lubricated contacts is one of the most essential design criteria. The use of low-viscosity lubricants, as well as changing operating conditions, may lead to the wear-causing operating condition of mixed friction. For wear assessment, in the last decades numerical simulations have been confirmed as a powerful tool. The level of detail of the simulation model has a significant influence on the simulation results. The local wear heights for a hydrodynamic journal bearing under constant operating conditions are calculated numerically. A variant study is used to determine the influence of elastic deformation, cavitation model and the consideration of the wear-dependent surface topography. The surface topography, which is subject to change especially during running-in, is taken into account in the form of wear-dependent asperity contact pressure curves, respectively wear-dependent flow factors. To validate the simulation results, tests were carried out on a rotational tribometer. The results show that the consideration of the wear-dependent surface topography has a significant influence on the wear development and thus the trend evaluated from the experiment can be better assessed.",
keywords = "Wear simulation, Mixed friction, Multiscale Wear, Surface topography change, Lubricated contact",
author = "Michael Maier and Michael Pusterhofer and Florian Gr{\"u}n",
note = "Publisher Copyright: {\textcopyright} 2023",
year = "2023",
month = feb,
day = "18",
doi = "10.1016/j.matpr.2023.01.424",
language = "English",
volume = "93.2023",
pages = "563--570",
journal = "Materials Today: Proceedings",
issn = "2214-7853",
publisher = "Elsevier",
number = "4",

}

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TY - JOUR

T1 - Wear simulation in lubricated contacts considering wear-dependent surface topography changes

AU - Maier, Michael

AU - Pusterhofer, Michael

AU - Grün, Florian

N1 - Publisher Copyright: © 2023

PY - 2023/2/18

Y1 - 2023/2/18

N2 - Along with friction, wear in lubricated contacts is one of the most essential design criteria. The use of low-viscosity lubricants, as well as changing operating conditions, may lead to the wear-causing operating condition of mixed friction. For wear assessment, in the last decades numerical simulations have been confirmed as a powerful tool. The level of detail of the simulation model has a significant influence on the simulation results. The local wear heights for a hydrodynamic journal bearing under constant operating conditions are calculated numerically. A variant study is used to determine the influence of elastic deformation, cavitation model and the consideration of the wear-dependent surface topography. The surface topography, which is subject to change especially during running-in, is taken into account in the form of wear-dependent asperity contact pressure curves, respectively wear-dependent flow factors. To validate the simulation results, tests were carried out on a rotational tribometer. The results show that the consideration of the wear-dependent surface topography has a significant influence on the wear development and thus the trend evaluated from the experiment can be better assessed.

AB - Along with friction, wear in lubricated contacts is one of the most essential design criteria. The use of low-viscosity lubricants, as well as changing operating conditions, may lead to the wear-causing operating condition of mixed friction. For wear assessment, in the last decades numerical simulations have been confirmed as a powerful tool. The level of detail of the simulation model has a significant influence on the simulation results. The local wear heights for a hydrodynamic journal bearing under constant operating conditions are calculated numerically. A variant study is used to determine the influence of elastic deformation, cavitation model and the consideration of the wear-dependent surface topography. The surface topography, which is subject to change especially during running-in, is taken into account in the form of wear-dependent asperity contact pressure curves, respectively wear-dependent flow factors. To validate the simulation results, tests were carried out on a rotational tribometer. The results show that the consideration of the wear-dependent surface topography has a significant influence on the wear development and thus the trend evaluated from the experiment can be better assessed.

KW - Wear simulation

KW - Mixed friction

KW - Multiscale Wear

KW - Surface topography change

KW - Lubricated contact

UR - http://www.scopus.com/inward/record.url?scp=85148350344&partnerID=8YFLogxK

U2 - 10.1016/j.matpr.2023.01.424

DO - 10.1016/j.matpr.2023.01.424

M3 - Article

VL - 93.2023

SP - 563

EP - 570

JO - Materials Today: Proceedings

JF - Materials Today: Proceedings

SN - 2214-7853

IS - 4

ER -