2015
DOI: 10.1016/j.triboint.2014.02.022
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Characteristic times in transient thermal elastohydrodynamic line contacts

Abstract: The paper presents a numerical and analytical analysis on transient effects in Thermal Elasto-Hydrodynamic (TEHD) contacts subjected to fluctuations of their operating conditions. Firstly, the system of equations, boundary conditions and numerical scheme used in the model are described. In addition, developments to solve transient TEHD problems are detailed, on the basis of a previous work [1] dedicated to the study of steady state cases. Then, the phenomena at the origin of transient effects in TEHD contacts … Show more

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Cited by 30 publications
(15 citation statements)
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References 34 publications
(40 reference statements)
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“…The elastic deformation of the considered equivalent body in gap height direction δ is calculated by the finite element method, neglecting any dynamic response of the solids (Raisin et al [25]):…”
Section: Contact Mechanicsmentioning
confidence: 99%
“…The elastic deformation of the considered equivalent body in gap height direction δ is calculated by the finite element method, neglecting any dynamic response of the solids (Raisin et al [25]):…”
Section: Contact Mechanicsmentioning
confidence: 99%
“…• All heat generated by fluid shear (none by compression) [15]. • Absence of heat conduction in the x-direction within the lubricant film and the contacting bodies [16,17]. • Thermal properties of the lubricant and contacting bodies constant with temperature [18].…”
Section: Introductionmentioning
confidence: 99%
“…Gear lubrication has been studied after the numerical elastohydrodynamic lubrication model developed [4]. The non-Newtonian behaviors were investigated based on an EHL model of spur gear by Larsson [5], and the transient thermal effect was investigated at a generic elastohydrodynamic line contact [6]. As for non-Newtonian lubricant, it was notable that Ree-Eyring model failed to describe large shear rate, which was pointed out by Khonsari and Hua [7].…”
Section: Introductionmentioning
confidence: 99%