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

Content Provider	Springer Nature Link
Author	Doki Thon, T. Fillot, N. Morales Espejel, G. E. Querry, M. Philippon, D. Devaux, N. Vergne, P.
Copyright Year	2013
Abstract	Studies on the behaviour of rolling bearings show that the position as well as the loading of the rolling element at the flange roller-end contact depends on the momentum created on the roller track caused by local friction variability. This situation is characterized by a skew angle that varies within a limited range in the application influenced also by the clearance in the cage pockets. This paper provides some elements which contribute to increase the understanding of the physical phenomena occurring in lubricated spinning contacts under skew. An experimental investigation is carried out using a unique in-house test rig called Tribogyr, dedicated to large size-contacts with spinning and skewing kinematics. Alongside the experiments, a numerical analysis is conducted, based on a finite element approach, aiming to take into account the multiphysics aspect of this thermo-elastohydrodynamic problem. The model and the experiments show a good agreement. The skew effects on film thickness of spinning flange/roller-end contacts are characterized by a global decrease of central film thickness, mainly due to high shear of the lubricant, involving thermal thinning. The shallow dimple captured by the in situ measurements of film thickness can be explained as a consequence of the viscosity wedge due to different thermal conductivities between glass and steel. The dual experimental–theoretical approach was a useful method that help to study separate phenomena which are naturally coupled each other.
Starting Page	115
Ending Page	126
Page Count	12
File Format	PDF
ISSN	10238883
Journal	Tribology Letters
Volume Number	50
Issue Number	1
e-ISSN	15732711
Language	English
Publisher	Springer US
Publisher Date	2013-03-08
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Elastohydrodynamic lubrication Point contact Thermal effects Spin Skew Film thickness Tribology, Corrosion and Coatings Surfaces and Interfaces, Thin Films Theoretical and Applied Mechanics Physical Chemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Mechanics of Materials Mechanical Engineering Surfaces and Interfaces

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