Film Thickness Formula for Thermal EHL Line Contact Considering a New Reynolds–Carreau Equation

This article presents thermal EHL calculations for line contacts using a new analytical form of the Reynolds equation for lubricants whose rheological behaviour follows a modified Carreau model proposed by Bair. The isothermal calculation process was presented in: de la Guerra (Tribol Int 82:133–141...

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Bibliographic Details
Published inTribology letters Vol. 66; no. 1; pp. 1 - 12
Main Authors de la Guerra Ochoa, Eduardo, Echávarri Otero, Javier, Sánchez López, Alejandro, Chacón Tanarro, Enrique, del Río López, Benito
Format Journal Article
LanguageEnglish
Published New York Springer US 01.03.2018
Springer Nature B.V
Subjects
Accuracy
Chemistry and Materials Science
Corrosion and Coatings
Film thickness
Formulas (mathematics)
Line contact
Materials Science
Nanotechnology
Original Paper
Physical Chemistry
Reynolds equation
Rheological properties
Surfaces and Interfaces
Temperature effects
Theoretical and Applied Mechanics
Thin Films
Tribology
Shear-thinning
Film thickness
Reynolds–Carreau equation
Thermal effects
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Summary:This article presents thermal EHL calculations for line contacts using a new analytical form of the Reynolds equation for lubricants whose rheological behaviour follows a modified Carreau model proposed by Bair. The isothermal calculation process was presented in: de la Guerra (Tribol Int 82:133–141, 2015 ). A new parametric formula is hereby developed using the aforementioned Reynolds–Carreau equation and adding the thermal effects to the solving process. The accuracy of this formula is discussed by comparing the estimates with the experimental and numerical results available. This analytical formula provides a fast and easy calculation methodology with good accuracy within a reasonably wide range of operating conditions.
ISSN:1023-8883
1573-2711
DOI:10.1007/s11249-018-0981-6