Details
| Translated title of the contribution | Effect of Stearic Acid Absorption on Bearing Performance with Limited Lubricant Supply |
|---|---|
| Original language | Chinese |
| Pages (from-to) | 197-203 |
| Number of pages | 7 |
| Journal | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering |
| Volume | 59 |
| Issue number | 15 |
| Early online date | 5 Aug 2023 |
| Publication status | Published - 27 Sept 2023 |
Abstract
The friction torque and the film thickness of PAO10 (poly-α-olefin) and PAO10S (poly-α-olefin + 0.2% w/w stearic acid) are measured using a full-bearing test rig and a optical ball-on-ring oil film test rig under conditions of limited oil supply, respectively. The results show that with the increase of the rotational speed, the frictional torque of the bearing first decreases and then increases, and there is a critical rotational speed at the minimum frictional torque. When the speed is lower than the critical speed, the frictional torque of PAO10S decreases with the increase of the oil supply, and is much smaller than that of PAO10. The reduced friction torque of the bearing by the PAO10S can be attributed to the low shear strength of the stearic acid adsorption film, and more important is the improved oil supply at the inlet from the enhanced replenishment on the lubrication track by the low surface energy by the stearic acid adsorption. The lubrication status of the PAO10 and PAO10S can be divided into three zones by the interference measurement of the lubrication film thickness, and the friction torque of the full bearing is closely correlated to the load-carrying capacity of the lubrication films in the three zones.
Keywords
- adsorption film, critical speed, frictional torque, limited lubrication supply, stearic acid
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, Vol. 59, No. 15, 27.09.2023, p. 197-203.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - 硬脂酸吸附对轴承限量供油润滑影响*
AU - Saisheng, Fan
AU - Feng, Guo
AU - Zhaogang, Jing
AU - Xinming, Li
AU - Haichao, Liu
AU - Poll, G.
N1 - Publisher Copyright: © 2023 Editorial Office of Chinese Journal of Mechanical Engineering. All rights reserved.
PY - 2023/9/27
Y1 - 2023/9/27
N2 - The friction torque and the film thickness of PAO10 (poly-α-olefin) and PAO10S (poly-α-olefin + 0.2% w/w stearic acid) are measured using a full-bearing test rig and a optical ball-on-ring oil film test rig under conditions of limited oil supply, respectively. The results show that with the increase of the rotational speed, the frictional torque of the bearing first decreases and then increases, and there is a critical rotational speed at the minimum frictional torque. When the speed is lower than the critical speed, the frictional torque of PAO10S decreases with the increase of the oil supply, and is much smaller than that of PAO10. The reduced friction torque of the bearing by the PAO10S can be attributed to the low shear strength of the stearic acid adsorption film, and more important is the improved oil supply at the inlet from the enhanced replenishment on the lubrication track by the low surface energy by the stearic acid adsorption. The lubrication status of the PAO10 and PAO10S can be divided into three zones by the interference measurement of the lubrication film thickness, and the friction torque of the full bearing is closely correlated to the load-carrying capacity of the lubrication films in the three zones.
AB - The friction torque and the film thickness of PAO10 (poly-α-olefin) and PAO10S (poly-α-olefin + 0.2% w/w stearic acid) are measured using a full-bearing test rig and a optical ball-on-ring oil film test rig under conditions of limited oil supply, respectively. The results show that with the increase of the rotational speed, the frictional torque of the bearing first decreases and then increases, and there is a critical rotational speed at the minimum frictional torque. When the speed is lower than the critical speed, the frictional torque of PAO10S decreases with the increase of the oil supply, and is much smaller than that of PAO10. The reduced friction torque of the bearing by the PAO10S can be attributed to the low shear strength of the stearic acid adsorption film, and more important is the improved oil supply at the inlet from the enhanced replenishment on the lubrication track by the low surface energy by the stearic acid adsorption. The lubrication status of the PAO10 and PAO10S can be divided into three zones by the interference measurement of the lubrication film thickness, and the friction torque of the full bearing is closely correlated to the load-carrying capacity of the lubrication films in the three zones.
KW - adsorption film
KW - critical speed
KW - frictional torque
KW - limited lubrication supply
KW - stearic acid
UR - http://www.scopus.com/inward/record.url?scp=85175554184&partnerID=8YFLogxK
U2 - 10.3901/JME.2023.15.197
DO - 10.3901/JME.2023.15.197
M3 - Article
AN - SCOPUS:85175554184
VL - 59
SP - 197
EP - 203
JO - Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
JF - Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
SN - 0577-6686
IS - 15
ER -