Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils

A predictive friction model has been developed in boundary lubrication conditions to understand the sensitivity of the model to molybdenum dithiocarbamate (MoDTC), a friction modifying additive and zinc dialkyldithiophosphate (ZDDP), an antiwear additive in engine oil. Controlled experiments were pe...

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Autores principales:	Rupesh Roshan, Martin Priest, Anne Neville, Ardian Morina, Xin Xia, Chris P. Warrens, Marc J. Payne
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2011
Materias:	friction model boundary lubrication tribofilm modtc zddp Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/d8d7fb8935c943c6a1777ad0a4838dc6
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spelling	oai:doaj.org-article:d8d7fb8935c943c6a1777ad0a4838dc62021-11-05T09:25:30ZFriction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils1881-219810.2474/trol.6.301https://doaj.org/article/d8d7fb8935c943c6a1777ad0a4838dc62011-11-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/6/7/6_7_301/_pdf/-char/enhttps://doaj.org/toc/1881-2198A predictive friction model has been developed in boundary lubrication conditions to understand the sensitivity of the model to molybdenum dithiocarbamate (MoDTC), a friction modifying additive and zinc dialkyldithiophosphate (ZDDP), an antiwear additive in engine oil. Controlled experiments were performed on a block-on-ring tribometer to record the friction performance of the tribofilms produced by ZDDP and MoDTC additives under conditions representative of boundary lubrication conditions in the cam and follower interface. A statistical approach was used to develop an empirical friction model. The boundary lubrication friction model considers ZDDP and MoDTC additive concentration in an ester-containing polyalphaolefin (PAO) base oil, temperature and sliding speed as the factors affecting friction. The friction significantly depends on ZDDP, MoDTC, speed and temperature; showing a ZDDP/MoDTC synergetic effect on reducing friction. The results show good agreement between the measured and the predicted friction values, with a high correlation coefficient.Rupesh RoshanMartin PriestAnne NevilleArdian MorinaXin XiaChris P. WarrensMarc J. PayneJapanese Society of Tribologistsarticlefriction modelboundary lubricationtribofilmmodtczddpPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 6, Iss 7, Pp 301-310 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	friction model boundary lubrication tribofilm modtc zddp Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	friction model boundary lubrication tribofilm modtc zddp Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Rupesh Roshan Martin Priest Anne Neville Ardian Morina Xin Xia Chris P. Warrens Marc J. Payne Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils
description	A predictive friction model has been developed in boundary lubrication conditions to understand the sensitivity of the model to molybdenum dithiocarbamate (MoDTC), a friction modifying additive and zinc dialkyldithiophosphate (ZDDP), an antiwear additive in engine oil. Controlled experiments were performed on a block-on-ring tribometer to record the friction performance of the tribofilms produced by ZDDP and MoDTC additives under conditions representative of boundary lubrication conditions in the cam and follower interface. A statistical approach was used to develop an empirical friction model. The boundary lubrication friction model considers ZDDP and MoDTC additive concentration in an ester-containing polyalphaolefin (PAO) base oil, temperature and sliding speed as the factors affecting friction. The friction significantly depends on ZDDP, MoDTC, speed and temperature; showing a ZDDP/MoDTC synergetic effect on reducing friction. The results show good agreement between the measured and the predicted friction values, with a high correlation coefficient.
format	article
author	Rupesh Roshan Martin Priest Anne Neville Ardian Morina Xin Xia Chris P. Warrens Marc J. Payne
author_facet	Rupesh Roshan Martin Priest Anne Neville Ardian Morina Xin Xia Chris P. Warrens Marc J. Payne
author_sort	Rupesh Roshan
title	Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils
title_short	Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils
title_full	Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils
title_fullStr	Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils
title_full_unstemmed	Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils
title_sort	friction modelling in boundary lubrication considering the effect of modtc and zddp in engine oils
publisher	Japanese Society of Tribologists
publishDate	2011
url	https://doaj.org/article/d8d7fb8935c943c6a1777ad0a4838dc6
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Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils

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