Experimental Study on the Effect of Micro-Texture on EHL Point-Contact Film Thickness Subject to Sliding Conditions
Authors: Sun, J., Bai, L., Guo, F. and Khan, Z.A.
Journal: Materials
Volume: 15
Issue: 22
eISSN: 1996-1944
DOI: 10.3390/ma15227926
Abstract:Processing texture on contact surfaces can improve the friction performance of mechanical comments. In this research, micro-dimple textures with various parameter were processed on a steel ball’s surface with a picosecond laser. Then, the EHL (elastohydrodynamic lubrication) oil film thickness was measured on an optical ball-on-disc tribometer subjected to pure sliding conditions. The effects of sliding velocity, load, dimple location and dimple depth on the film thickness were analyzed. The results showed that the dimple affected the pressure distribution in the contact area, which in turn changed the distribution of the local film thickness. An increase in the local film thickness occurred between the dimple and outlet of the contact region, while a decrease in the film thickness formed from the dimple to the entrance of the contact area and both sides of the dimple’s edge. Velocity and applied loads affected the film thickness distribution as well. As the sliding velocity increased, the film thickness increasing region enlarged, while the film thickness-decreasing area shrank. The increase in load resulted in a negative effect on the increase in film thickness. This study will provide a reference for point-contact designs with low friction conditions.
https://eprints.bournemouth.ac.uk/37770/
Source: Scopus
Experimental Study on the Effect of Micro-Texture on EHL Point-Contact Film Thickness Subject to Sliding Conditions.
Authors: Sun, J., Bai, L., Guo, F. and Khan, Z.A.
Journal: Materials (Basel)
Volume: 15
Issue: 22
ISSN: 1996-1944
DOI: 10.3390/ma15227926
Abstract:Processing texture on contact surfaces can improve the friction performance of mechanical comments. In this research, micro-dimple textures with various parameter were processed on a steel ball's surface with a picosecond laser. Then, the EHL (elastohydrodynamic lubrication) oil film thickness was measured on an optical ball-on-disc tribometer subjected to pure sliding conditions. The effects of sliding velocity, load, dimple location and dimple depth on the film thickness were analyzed. The results showed that the dimple affected the pressure distribution in the contact area, which in turn changed the distribution of the local film thickness. An increase in the local film thickness occurred between the dimple and outlet of the contact region, while a decrease in the film thickness formed from the dimple to the entrance of the contact area and both sides of the dimple's edge. Velocity and applied loads affected the film thickness distribution as well. As the sliding velocity increased, the film thickness increasing region enlarged, while the film thickness-decreasing area shrank. The increase in load resulted in a negative effect on the increase in film thickness. This study will provide a reference for point-contact designs with low friction conditions.
https://eprints.bournemouth.ac.uk/37770/
Source: PubMed
Experimental Study on the Effect of Micro-Texture on EHL Point-Contact Film Thickness Subject to Sliding Conditions
Authors: Sun, J., Bai, L., Guo, F. and Khan, Z.A.
Journal: MATERIALS
Volume: 15
Issue: 22
eISSN: 1996-1944
DOI: 10.3390/ma15227926
https://eprints.bournemouth.ac.uk/37770/
Source: Web of Science (Lite)
Experimental study on the effect of micro-texture on EHL point contact film thickness subject to sliding conditions
Authors: Sun, J., Bai, L., Guo, F. and Khan, Z.
Journal: materials
Volume: 15
Issue: 22
Pages: 7926-7942
Publisher: MDPI
ISSN: 1996-1944
DOI: 10.3390/ma15227926
Abstract:Processing texture over contact pair surfaces can improve friction performance in interacting engineering systems. In this paper, micro-dimple textures with various parameter were processed on steel ball’s surface by using a femtosecond laser. Then the EHL (elastohydrodynamic lubrica-tion) oil film thickness was measured on an optical ball-on-disc tribometer subjected to pure sliding conditions. The effects of sliding velocity, load, dimple location and dimple depth on the film thickness of EHL were analyzed. This showed that dimple affected the pressure distribution in the contact area, and in turn affected the local film thickness distribution. The phenomenon of local film thickness increasing occurred under pure sliding conditions between the dimple and outlet of the contact region, while film thickness reduction region formed from the dimple to the entrance of the contact area and both sides of the dimple edge. Velocity and applied load potentially affect the film thickness distribution as well. The film thickness increasing region became larger while the film reduction area became smaller with increasing sliding velocity. The increase in load results in a negative effect on the increase of film thickness. This study could provide a reference for wear reduction design for point contact.
https://eprints.bournemouth.ac.uk/37770/
https://www.mdpi.com/1996-1944/15/22/7926
Source: Manual
Experimental Study on the Effect of Micro-Texture on EHL Point-Contact Film Thickness Subject to Sliding Conditions.
Authors: Sun, J., Bai, L., Guo, F. and Khan, Z.A.
Journal: Materials (Basel, Switzerland)
Volume: 15
Issue: 22
Pages: 7926
eISSN: 1996-1944
ISSN: 1996-1944
DOI: 10.3390/ma15227926
Abstract:Processing texture on contact surfaces can improve the friction performance of mechanical comments. In this research, micro-dimple textures with various parameter were processed on a steel ball's surface with a picosecond laser. Then, the EHL (elastohydrodynamic lubrication) oil film thickness was measured on an optical ball-on-disc tribometer subjected to pure sliding conditions. The effects of sliding velocity, load, dimple location and dimple depth on the film thickness were analyzed. The results showed that the dimple affected the pressure distribution in the contact area, which in turn changed the distribution of the local film thickness. An increase in the local film thickness occurred between the dimple and outlet of the contact region, while a decrease in the film thickness formed from the dimple to the entrance of the contact area and both sides of the dimple's edge. Velocity and applied loads affected the film thickness distribution as well. As the sliding velocity increased, the film thickness increasing region enlarged, while the film thickness-decreasing area shrank. The increase in load resulted in a negative effect on the increase in film thickness. This study will provide a reference for point-contact designs with low friction conditions.
https://eprints.bournemouth.ac.uk/37770/
Source: Europe PubMed Central
Experimental study on the effect of micro-texture on EHL point contact film thickness subject to sliding conditions
Authors: Sun, J., Bai, L., Guo, F. and Khan, Z.A.
Journal: materials
Volume: 15
Issue: 22
Publisher: MDPI
ISSN: 1996-1944
Abstract:Processing texture over contact pair surfaces can improve friction performance in interacting engineering systems. In this paper, micro-dimple textures with various parameter were processed on steel ball’s surface by using a femtosecond laser. Then the EHL (elastohydrodynamic lubrica-tion) oil film thickness was measured on an optical ball-on-disc tribometer subjected to pure sliding conditions. The effects of sliding velocity, load, dimple location and dimple depth on the film thickness of EHL were analyzed. This showed that dimple affected the pressure distribution in the contact area, and in turn affected the local film thickness distribution. The phenomenon of local film thickness increasing occurred under pure sliding conditions between the dimple and outlet of the contact region, while film thickness reduction region formed from the dimple to the entrance of the contact area and both sides of the dimple edge. Velocity and applied load potentially affect the film thickness distribution as well. The film thickness increasing region became larger while the film reduction area became smaller with increasing sliding velocity. The increase in load results in a negative effect on the increase of film thickness. This study could provide a reference for wear reduction design for point contact.
https://eprints.bournemouth.ac.uk/37770/
https://www.mdpi.com/journal/materials
Source: BURO EPrints