Analytical model for predicting friction in line contacts

Echávarri Otero, Javier and Guerra Ochoa, Eduardo de la and Chacón Tanarro, Enrique and Diaz Lantada, Andres and Muñoz Guijosa, Juan Manuel (2016). Analytical model for predicting friction in line contacts. "Lubrication Science", v. 28 (n. 4); pp. 189-205. ISSN 1557-6833. https://doi.org/10.1002/ls.1325.

Description

Title: Analytical model for predicting friction in line contacts
Author/s:
  • Echávarri Otero, Javier
  • Guerra Ochoa, Eduardo de la
  • Chacón Tanarro, Enrique
  • Diaz Lantada, Andres
  • Muñoz Guijosa, Juan Manuel
Item Type: Article
Título de Revista/Publicación: Lubrication Science
Date: 16 May 2016
ISSN: 1557-6833
Volume: 28
Subjects:
Freetext Keywords: friction coefficient; line contact; termal elastohydrodynamic lubrication; shear-thinnin
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Mecánica
UPM's Research Group: Grupo de Investigación en Ingeniería de Máquinas
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This paper presents the development of an analytical model for the prediction of the friction coefficient in line contacts under thermal elastohydrodynamic lubrication (TEHL). A new theoretical equation is deduced for determining the friction coefficient, taking into account the rheology of common lubricants under TEHL. This approach also considers the heat generated and its penetration into the bulk of the contacting solids. Therefore, the increase in temperature and ensuing variations in the operating conditions are determined. In order to illustrate the use of the new model and verify its accuracy, an experimental stage is performed in a tribological test rig. The predictions of the proposed model are compared with the results obtained in the test rig and other data reported in the literature for diverse lubricants, showing a good agreement in every case.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainDPI2013-48348-C2-2-RUnspecifiedUnspecifiedUnspecified

More information

Item ID: 44491
DC Identifier: http://oa.upm.es/44491/
OAI Identifier: oai:oa.upm.es:44491
DOI: 10.1002/ls.1325
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/ls.1325/full
Deposited by: Memoria Investigacion
Deposited on: 26 Jan 2017 16:39
Last Modified: 01 Mar 2017 17:08
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