A thermal resistances-based approach for thermal-elastrohydrodynamic calculations in point contacts

Guerra Ochoa, Eduardo de la and Echávarri Otero, Javier and Chacón Tanarro, Enrique and Río López, Benito del (2018). A thermal resistances-based approach for thermal-elastrohydrodynamic calculations in point contacts. "Journal of Mechanical Engineering Science", v. 232 (n. 11); pp. 1-15. ISSN 0954-4062. https://doi.org/10.1177/0954406217713231.

Description

Title: A thermal resistances-based approach for thermal-elastrohydrodynamic calculations in point contacts
Author/s:
  • Guerra Ochoa, Eduardo de la
  • Echávarri Otero, Javier
  • Chacón Tanarro, Enrique
  • Río López, Benito del
Item Type: Article
Título de Revista/Publicación: Journal of Mechanical Engineering Science
Date: June 2018
ISSN: 0954-4062
Volume: 232
Subjects:
Freetext Keywords: Thermal-elastohydrodynamic; lubrication; thermal resistance; friction; point contact
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Mecánica
UPM's Research Group: Investigación en Ingeniería de Máquinas GI-IM
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This article presents a thermal resistances-based approach for solving the thermal-elastohydrodynamic lubrication problem in point contact, taking the lubricant rheology into account. The friction coefficient in the contact is estimated, along with the distribution of both film thickness and temperature. A commercial tribometer is used in order to measure the friction coefficient at a ball-on-disc point contact lubricated with a polyalphaolefin base. These data and other experimental results available in the bibliography are compared to those obtained by using the proposed methodology, and thermal effects are analysed. The new approach shows good accuracy for predicting the friction coefficient and requires less computational cost than full thermal-elastohydrodynamic simulations.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainDPI2013-48348-C2-2-RUnspecifiedUnspecifiedHERRAMIENTAS PARA VALORAR LA UTILIZACION DE ACEITES FUEL-ECONOMY Y DE SUPERFICIES TEXTURIZADAS

More information

Item ID: 50263
DC Identifier: http://oa.upm.es/50263/
OAI Identifier: oai:oa.upm.es:50263
DOI: 10.1177/0954406217713231
Official URL: http://journals.sagepub.com/doi/pdf/10.1177/0954406217713231
Deposited by: Memoria Investigacion
Deposited on: 08 Jun 2018 14:22
Last Modified: 29 Apr 2019 09:09
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