Journal
ADVANCES IN ENGINEERING SOFTWARE
Volume 46, Issue 1, Pages 4-18Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.advengsoft.2010.09.010
Keywords
Finite elements; Elastohydrodynamic lubrication; Artificial diffusion; Full-system approach; Thermal effects; Non-Newtonian lubricants
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Funding
- French Ministry of National Education and Scientific Research
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This work presents a model for elastohydrodynamic (EHD) lubrication problems. A finite element full-system approach is employed. The hydrodynamic and elastic problems are solved simultaneously which leads to fast convergence rates. The free boundary problem at the contact's exit is handled by a penalty method. For highly loaded contacts, the standard Galerkin solution of Reynolds equation exhibits an oscillatory behaviour. The use of artificial diffusion techniques is proposed to stabilize the solution. This approach is then extended to account for non-Newtonian lubricant behaviour and thermal effects. Artificial diffusion procedures are also introduced to stabilize the solution at high loads. (C) 2010 Civil-Comp Ltd and Elsevier Ltd. All rights reserved.
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