Details
| Original language | English |
|---|---|
| Pages (from-to) | 386-397 |
| Number of pages | 12 |
| Journal | Tribology International |
| Volume | 131 |
| Early online date | 9 Nov 2018 |
| Publication status | Published - Mar 2019 |
Abstract
The effect of the solid body temperature effect on film thickness and traction in elastohydrodynamic lubrication (EHL) has been studied numerically. At a moderate entrainment velocity, the EHL film behavior is controlled by the solid body temperature as the oil heats up to the body temperature before entering the contact zone and thus the film thickness decreases. For high velocity conditions, inlet shear and compressive heating also contribute to the reduction of film thickness. The results indicate that the measured film thickness and traction on disc machines might be lower than the expected values when the disc temperature exceeds the supplied oil temperature.
Keywords
- Film thickness, Solid body temperature, Thermal EHL, Traction
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
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Tribology International, Vol. 131, 03.2019, p. 386-397.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Crucial role of solid body temperature on elastohydrodynamic film thickness and traction
AU - Liu, H. C.
AU - Zhang, B. B.
AU - Bader, Norbert
AU - Guo, F.
AU - Poll, Gerhard
AU - Yang, P.
N1 - Funding Information: The authors would like to thank Prof. CH Venner for helpful discussion and for careful correction of the manuscript, and Mr. T Brieke and Mr. T Terwey on the re-design of the disc machine. This work is partly supported by FVV, Research Association for Combustion Engines e.V., Germany , through Grant No. 6012773 . The first two authors, Liu and Zhang, thank the China Scholarship Council for providing the PhD scholarship.
PY - 2019/3
Y1 - 2019/3
N2 - The effect of the solid body temperature effect on film thickness and traction in elastohydrodynamic lubrication (EHL) has been studied numerically. At a moderate entrainment velocity, the EHL film behavior is controlled by the solid body temperature as the oil heats up to the body temperature before entering the contact zone and thus the film thickness decreases. For high velocity conditions, inlet shear and compressive heating also contribute to the reduction of film thickness. The results indicate that the measured film thickness and traction on disc machines might be lower than the expected values when the disc temperature exceeds the supplied oil temperature.
AB - The effect of the solid body temperature effect on film thickness and traction in elastohydrodynamic lubrication (EHL) has been studied numerically. At a moderate entrainment velocity, the EHL film behavior is controlled by the solid body temperature as the oil heats up to the body temperature before entering the contact zone and thus the film thickness decreases. For high velocity conditions, inlet shear and compressive heating also contribute to the reduction of film thickness. The results indicate that the measured film thickness and traction on disc machines might be lower than the expected values when the disc temperature exceeds the supplied oil temperature.
KW - Film thickness
KW - Solid body temperature
KW - Thermal EHL
KW - Traction
UR - http://www.scopus.com/inward/record.url?scp=85056485413&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2018.11.006
DO - 10.1016/j.triboint.2018.11.006
M3 - Article
AN - SCOPUS:85056485413
VL - 131
SP - 386
EP - 397
JO - Tribology International
JF - Tribology International
SN - 0301-679X
ER -