Details
| Original language | English |
|---|---|
| Article number | 106335 |
| Journal | Tribology International |
| Volume | 148 |
| Early online date | 31 Mar 2020 |
| Publication status | Published - Aug 2020 |
Abstract
A simplified traction prediction approach has been developed for highly loaded EHL contacts accounting for non-Newtonian and thermal effects. For validation, a reference fluid squalane was used for traction measurements at high Hertzian contact pressures (1.25 to 2.66GPa) at three velocities of 5, 10 and 15m/s. Good agreement was seen for traction curves in a semi-log scale at a low speed of 5m/s, whereas for higher speeds at 10m/s and 15m/s, the measured traction curves are lower than the predicted ones. This reduced friction in the experimental results is caused by the increase in mass temperature of the discs. Two possible mechanisms for this reduced friction due to solid body temperature effects are discussed.
Keywords
- EHL Traction, Maximum shear stress, Rolling/sliding contacts, Solid body temperature
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. 148, 106335, 08.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Simplified traction prediction for highly loaded rolling/sliding EHL contacts
AU - Liu, Haichao
AU - Zhang, Bing
AU - Bader, Norbert
AU - Venner, C. H.
AU - Poll, Gerhard
N1 - Funding information: The authors would like to thank JA Greenwood for valuable suggestions. This work is partly supported by FVV-Research Association for Combustion Engines e.V., Germany , through Grant . The first two authors would like to acknowledge the China Scholarship Council (CSC) for providing the scholarship. The authors would like to thank JA Greenwood for valuable suggestions. This work is partly supported by FVV-Research Association for Combustion Engines e.V. Germany, through Grant No.6012773. The first two authors would like to acknowledge the China Scholarship Council (CSC) for providing the scholarship.
PY - 2020/8
Y1 - 2020/8
N2 - A simplified traction prediction approach has been developed for highly loaded EHL contacts accounting for non-Newtonian and thermal effects. For validation, a reference fluid squalane was used for traction measurements at high Hertzian contact pressures (1.25 to 2.66GPa) at three velocities of 5, 10 and 15m/s. Good agreement was seen for traction curves in a semi-log scale at a low speed of 5m/s, whereas for higher speeds at 10m/s and 15m/s, the measured traction curves are lower than the predicted ones. This reduced friction in the experimental results is caused by the increase in mass temperature of the discs. Two possible mechanisms for this reduced friction due to solid body temperature effects are discussed.
AB - A simplified traction prediction approach has been developed for highly loaded EHL contacts accounting for non-Newtonian and thermal effects. For validation, a reference fluid squalane was used for traction measurements at high Hertzian contact pressures (1.25 to 2.66GPa) at three velocities of 5, 10 and 15m/s. Good agreement was seen for traction curves in a semi-log scale at a low speed of 5m/s, whereas for higher speeds at 10m/s and 15m/s, the measured traction curves are lower than the predicted ones. This reduced friction in the experimental results is caused by the increase in mass temperature of the discs. Two possible mechanisms for this reduced friction due to solid body temperature effects are discussed.
KW - EHL Traction
KW - Maximum shear stress
KW - Rolling/sliding contacts
KW - Solid body temperature
UR - http://www.scopus.com/inward/record.url?scp=85082648559&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2020.106335
DO - 10.1016/j.triboint.2020.106335
M3 - Article
AN - SCOPUS:85082648559
VL - 148
JO - Tribology International
JF - Tribology International
SN - 0301-679X
M1 - 106335
ER -