Details
| Original language | English |
|---|---|
| Article number | 106714 |
| Journal | Tribology International |
| Volume | 154 |
| Early online date | 19 Oct 2020 |
| Publication status | Published - Feb 2021 |
Abstract
Electrical bearing capacitance plays an important role in the prediction of harmful bearing currents, which could lead to premature failure of the bearing and the entire drive system. The effect of rolling speed, force, and material parameters on the electrical capacitance of an elliptical contact in elastohydrodynamic lubrication has been studied numerically. An empirical equation that describes the relationship between the areas of central film thickness and minimum film thickness of the HERTZ'ian contact area has been derived. Additional, another formula to calculate the total capacitance of a rolling bearing, based only on the HERTZ'ian contact capacitance with the central film thickness as single parameter, has been developed. Finally, a comparison was made between the calculated capacities and measured values.
Keywords
- Bearing current, Capacitance, EHL, Rolling bearing
ASJC Scopus subject areas
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Materials Science(all)
- Surfaces, Coatings and Films
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In: Tribology International, Vol. 154, 106714, 02.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Empirical formulae for the influence of real film thickness distribution on the capacitance of an EHL point contact and application to rolling bearings
AU - Schneider, Volker
AU - Liu, Haichao
AU - Bader, Norbert
AU - Furtmann, Alexander
AU - Poll, Gerhard
N1 - Funding Information: This work was executed at the Leibniz University Hannover, Germany. The authors would like to thank the “Otto von Guericke”-Research Association (AiF) for their financial support of the project (Grant No. 20496 N ). The authors also would like to thank the Flender GmbH for permission to publish this paper.
PY - 2021/2
Y1 - 2021/2
N2 - Electrical bearing capacitance plays an important role in the prediction of harmful bearing currents, which could lead to premature failure of the bearing and the entire drive system. The effect of rolling speed, force, and material parameters on the electrical capacitance of an elliptical contact in elastohydrodynamic lubrication has been studied numerically. An empirical equation that describes the relationship between the areas of central film thickness and minimum film thickness of the HERTZ'ian contact area has been derived. Additional, another formula to calculate the total capacitance of a rolling bearing, based only on the HERTZ'ian contact capacitance with the central film thickness as single parameter, has been developed. Finally, a comparison was made between the calculated capacities and measured values.
AB - Electrical bearing capacitance plays an important role in the prediction of harmful bearing currents, which could lead to premature failure of the bearing and the entire drive system. The effect of rolling speed, force, and material parameters on the electrical capacitance of an elliptical contact in elastohydrodynamic lubrication has been studied numerically. An empirical equation that describes the relationship between the areas of central film thickness and minimum film thickness of the HERTZ'ian contact area has been derived. Additional, another formula to calculate the total capacitance of a rolling bearing, based only on the HERTZ'ian contact capacitance with the central film thickness as single parameter, has been developed. Finally, a comparison was made between the calculated capacities and measured values.
KW - Bearing current
KW - Capacitance
KW - EHL
KW - Rolling bearing
UR - http://www.scopus.com/inward/record.url?scp=85093671265&partnerID=8YFLogxK
U2 - 10.15488/13258
DO - 10.15488/13258
M3 - Article
AN - SCOPUS:85093671265
VL - 154
JO - Tribology International
JF - Tribology International
SN - 0301-679X
M1 - 106714
ER -