Philippe Vergne
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View article: Machine Learning for Film Thickness Prediction in Elastohydrodynamic Lubricated Elliptical Contacts
Machine Learning for Film Thickness Prediction in Elastohydrodynamic Lubricated Elliptical Contacts Open
This study extends the use of Machine Learning (ML) approaches for lubricant film thickness predictions to the general case of elliptical elastohydrodynamic (EHD) contacts, by considering wide and narrow contacts over a wide range of ellip…
View article: A Quantitative Determination of Minimum Film Thickness in Elastohydrodynamic Circular Contacts
A Quantitative Determination of Minimum Film Thickness in Elastohydrodynamic Circular Contacts Open
The current work presents a quantitative approach for the prediction of minimum film thickness in elastohydrodynamic lubricated (EHL) circular contacts. In contrast to central film thickness, minimum film thickness can be hard to accuratel…
View article: Discussion on “Scale and contact geometry effects on friction in thermal EHL: Twin-disc versus ball-on-disc” by Liu, Zhang, Bader, Venner, Poll, Tribology International 154, 106694, 2021
Discussion on “Scale and contact geometry effects on friction in thermal EHL: Twin-disc versus ball-on-disc” by Liu, Zhang, Bader, Venner, Poll, Tribology International 154, 106694, 2021 Open
View article: Influence of spin on film thickness in elastohydrodynamic starved point contacts
Influence of spin on film thickness in elastohydrodynamic starved point contacts Open
View article: On the Influence of Phase Change in Highly Loaded Frictional Contacts
On the Influence of Phase Change in Highly Loaded Frictional Contacts Open
View article: Film thickness build-up in zero entrainment velocity wide point contacts
Film thickness build-up in zero entrainment velocity wide point contacts Open
View article: Numerical simulation of lubricated DLC-coated point contacts under infinite sliding conditions
Numerical simulation of lubricated DLC-coated point contacts under infinite sliding conditions Open
View article: Quantum dots to probe temperature and pressure in highly confined liquids
Quantum dots to probe temperature and pressure in highly confined liquids Open
A new in situ technique using CdSe/CdS/ZnS quantum dots fluorescence to probe pressure and temperature within highly confined flows of liquids.
View article: On the relevance of analytical film thickness EHD equations for isothermal point contacts: Qualitative or quantitative predictions?
On the relevance of analytical film thickness EHD equations for isothermal point contacts: Qualitative or quantitative predictions? Open
International audience
View article: Classical EHL Versus Quantitative EHL: A Perspective Part II—Super-Arrhenius Piezoviscosity, an Essential Component of Elastohydrodynamic Friction Missing from Classical EHL
Classical EHL Versus Quantitative EHL: A Perspective Part II—Super-Arrhenius Piezoviscosity, an Essential Component of Elastohydrodynamic Friction Missing from Classical EHL Open
International audience
View article: Debris Entrapment in Hybrid Rolling Element Bearings
Debris Entrapment in Hybrid Rolling Element Bearings Open
Lubricated contacts are widely used as interfaces within mechanical systems. Acting as an interface means separating the contacting surfaces. Even though the lubricant which fills this gap must only separate surfaces, it might sometimes in…
View article: Large Elliptical EHL Contacts for Reducing Particle Entrapment
Large Elliptical EHL Contacts for Reducing Particle Entrapment Open
Rolling element bearings are keystones of mechanisms, because they are necessary for a proper operation, but remains also the Achilles heel of the system. If any external particle penetrates the contact, the contacting surfaces may suffer …
View article: Transient Thermal Elastohydrodynamic Modeling of Cam–Follower Systems: Understanding Performance
Transient Thermal Elastohydrodynamic Modeling of Cam–Follower Systems: Understanding Performance Open
International audience
View article: Utilisation d'un dispositif micro-PIV pour la visualisation d'un micro-écoulement confiné et de son voisinage non confiné
Utilisation d'un dispositif micro-PIV pour la visualisation d'un micro-écoulement confiné et de son voisinage non confiné Open
Cette etude porte sur l’analyse des ecoulements survenant au sein de contacts elastohydrodynamiques. Ces contacts lubrifies sont presents dans de nombreux systemes mecaniques tels que les roulements a billes et comprendre leur fonctionneme…
View article: Ultimate Behavior of Confined Fluids Under Very High Pressure and Shear Stress
Ultimate Behavior of Confined Fluids Under Very High Pressure and Shear Stress Open
Friction in highly loaded lubricated contacts is a complex issue. Indeed, it highly depends on the lubricant rheological behaviour in the Hertzian region, which is not well known under such high pressure and high shear stress. Various expe…
View article: Debris Entrapment in Elliptical EHD Contacts
Debris Entrapment in Elliptical EHD Contacts Open
This study focuses on debris entrapment occurring in ball bearings, especially within elliptical EHD contacts.
Combining both numerical simulations and experimental work, allows to investigate and quantify the effect of
several contact…
View article: Etude du piégeage de contaminants solides dans des contacts EHD
Etude du piégeage de contaminants solides dans des contacts EHD Open
Colloque avec actes et comité de lecture. Internationale.
View article: A review of <i>in situ</i> methodologies for studying elastohydrodynamic lubrication
A review of <i>in situ</i> methodologies for studying elastohydrodynamic lubrication Open
Research in elastohydrodynamic lubrication (EHL) was, at its very beginning, essentially numerical, and even analytical. This area has, however, significantly evolved due to the necessity of validating the first models experimentally. More…
View article: Temperature and Viscosity Effects on the Photoluminescence Properties of Alkyl-Capped Silicon Nanoparticles Dispersed in Nonpolar Liquids
Temperature and Viscosity Effects on the Photoluminescence Properties of Alkyl-Capped Silicon Nanoparticles Dispersed in Nonpolar Liquids Open
International audience
View article: Hybrid Rolling Element Bearings: a New Answer Facing the Problem of Debris Entrapment
Hybrid Rolling Element Bearings: a New Answer Facing the Problem of Debris Entrapment Open
How can bearings run even faster and however stay reliable? This is the complex question that try to answer
manufacturers using hybrid bearings with steel rings and ceramic rolling elements. Under extreme conditions, as for
example withi…