NDLI: In Situ Pressure and Film Thickness Measurements in Rolling/Sliding Lubricated Point Contacts

Content Provider	Springer Nature Link
Author	Jubault, I. Molimard, J. Lubrecht, A.A. Mansot, J.L. Vergne, P.
Copyright Year	2003
Abstract	The physical conditions—pressure, temperature, shear stress—generated in an elastohydrodynamic contact govern the rheological behavior of the lubricant within the contact, and thus its tribological performance.This paper presents in situ measurements of pressure and film thickness in EHD point contacts using respectively Raman microspectrometry and differential colorimetric interferometry. A model lubricant—a polyphenylether oil (5P4E)—is used. The influence of load, temperature and sliding speed at different mean entrainment speeds on pressure and film thickness distributions is investigated. The analysis is based upon the relative values taken by the Moes dimensionless parameters M and L. In all cases, the pressure peak tends to increase and to move towards the center of the contact when the slide to roll ratio increases. When the sliding speed reaches large values (100 to 180%), several cases are encountered:• When M > L, the pressure peak softens and moves towards the outlet;• The Petrusevich peak disappears and the pressure profile remains almost constant as M and L are close to each other;• When M < L, the peak disappears along with a strong modification of the pressure distribution. The maximum value is significantly reduced and the area of contact increases.Measured film thickness profiles confirm these tendencies. Increasing the slide to roll ratio leads to an important film thickness reduction and modifies the position of the constriction. Furthermore, film increase localized between the contact center and the constriction region is observed. This indicates the presence of important thermal effects within the contact and is discussed in the light of recently published papers.
Starting Page	421
Ending Page	429
Page Count	9
File Format	PDF
ISSN	10238883
Journal	Tribology Letters
Volume Number	15
Issue Number	4
e-ISSN	15732711
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2003-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physical Chemistry Tribology, Corrosion and Coatings Surfaces and Interfaces, Thin Films Theoretical and Applied Mechanics
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Mechanics of Materials Mechanical Engineering Surfaces and Interfaces

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

In Situ Raman Microspectrometry of Lubricated Tribologic Contacts. Part Two: Simultaneous Measurements of Pressure, Lubricant Film Thickness and Temperature Distributions in a Running EHD Contact

Impact of Water on EHL Film Thickness of Lubricating Greases in Rolling Point Contacts

A Film Thickness Correction Formula for Double-Newtonian Shear-Thinning in Rolling EHL Circular Contacts

Erratum to: Analysis of Wear Particles Formed in Boundary-Lubricated Sliding Contacts

Fatigue Life Reduction in Mixed Lubricated Elliptical Contacts

The Behavior of Diluted Sooted Oils in Lubricated Contacts

A Dual Experimental/Numerical Approach for Film Thickness Analysis in TEHL Spinning Skewing Circular Contacts

Effect of geometry change of rough point contact due to lubricated sliding wear on lubrication

Starvation and Reflow of Point Contact Lubricated with Greases of Different Chemical Formulation

In Situ Pressure and Film Thickness Measurements in Rolling/Sliding Lubricated Point Contacts

Similar Documents

In Situ Raman Microspectrometry of Lubricated Tribologic Contacts. Part Two: Simultaneous Measurements of Pressure, Lubricant Film Thickness and Temperature Distributions in a Running EHD Contact

Impact of Water on EHL Film Thickness of Lubricating Greases in Rolling Point Contacts

A Film Thickness Correction Formula for Double-Newtonian Shear-Thinning in Rolling EHL Circular Contacts

Erratum to: Analysis of Wear Particles Formed in Boundary-Lubricated Sliding Contacts

Fatigue Life Reduction in Mixed Lubricated Elliptical Contacts

The Behavior of Diluted Sooted Oils in Lubricated Contacts

A Dual Experimental/Numerical Approach for Film Thickness Analysis in TEHL Spinning Skewing Circular Contacts

Effect of geometry change of rough point contact due to lubricated sliding wear on lubrication

Starvation and Reflow of Point Contact Lubricated with Greases of Different Chemical Formulation

In Situ Pressure and Film Thickness Measurements in Rolling/Sliding Lubricated Point Contacts