Elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction

The issue of elastohydrodynamic lubricants in industry has been investigated by many researchers. Whereby many machine elements, such as gear teeth, cams and followers and rolling-element bearings are working under spinning and rolling conditions. Thus, the function of lubricant is to prevent fricti...

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Main Author:	Zakaria, Nazri Huzaimi
Format:	Thesis
Language:	English
Published:	2010
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/11107/1/NazriHuzaimiZakariaMFKM2010.pdf
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spelling	my-utm-ep.111072018-05-30T02:32:55Z Elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction 2010-05 Zakaria, Nazri Huzaimi TJ Mechanical engineering and machinery The issue of elastohydrodynamic lubricants in industry has been investigated by many researchers. Whereby many machine elements, such as gear teeth, cams and followers and rolling-element bearings are working under spinning and rolling conditions. Thus, the function of lubricant is to prevent friction and wear which causes material failure between two surfaces. Bio-based lubricants are one of the possibilities that might be used as a substitute to the conventional lubricants in the industries. Therefore, in this research we focused on elastohydrodynamic lubrication flows at the elliptical conjunctions by using bio-based lubricants. The numerical approach is used in this study to determine the effect of elliptical conjunctions by using the Gambit and Fluent software. This software helps to verify the deformation of the pressure distribution at the conjunctions. We had obtained that at constant speed, the mineral oil has the highest value of dynamics pressure than bio-based lubricants along X and Y axis between two surfaces. So, the mineral oil will able to carry more load than bio-based lubricant. However, we obtain that the bio-based lubricant is the best lubricant to protect the surfaces from wear and damage than mineral oil because mineral oil has higher value of dynamics pressure than bio-based lubricant. 2010-05 Thesis http://eprints.utm.my/id/eprint/11107/ http://eprints.utm.my/id/eprint/11107/1/NazriHuzaimiZakariaMFKM2010.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering 1. Carmen Ana Beatrice Cioc. (2004). “An Elastohydrodynamic Lubricantion Model for Helicopter High- Speed Transmission Components.” Ph.D. Thesis. University of Toledo. 2. Bishop D. D., Carter L. P., and Chapman S. P. (1982). “Crops Science and Food Production.” McGraw-Hill book Company. 3. Eckey E. W. (1954). “Vegetables fats and oils.” Rein Hold. 4. Joy D. C., Wibherlay E.J. (1979). “A Tropical Agricultural Handbook.” Chassell. 5. Peters M. C., Francis W. (1981), “Fuels and Fuel Technology.” McGraw-Hill book Company. 251-266. 6. Bernad J. Hamrock (1994). “Fundamentals of Fluid Film Lubrication.” McGraw-Hill book Company. 7. J.Halling (1975). “Principles of Tribology.” The Macmillan Press Ltd. 8. P. Yang., J. Cui. (2006). “The influence of spinning on the performance of EHL in elliptical contacts.” Springer. 9. Kaplan, D.L. (ed.). (1998). “Biopolymers from Renewable Resources.” Springer, Berlin. 10. Rhodes, B.N., and D. Johnson, (2002). “Vegetable-Based Motor Oils in Biobased Industrial Fluids and Lubricants.” edited by S.Z. Erhan and J.M. Perez, AOCS Press, Champaign, IL, 85–109. 11. Dwivedi, M.C., and S. Sapre. (2002). “Total Vegetable-Oil Based Greases Prepared from Castor Oil.” J. Synth. Lubr. 19:229–241 12. G. Biresaw. (2006). “Elastohydrodynamic Properties of Seed Oils.” AOCS Press. 13. R. Martinsa,*, J. Seabrab, A. Britoc, Ch. Seyfertd, R. Lutherd, A. Igartuae. (2006) “Friction coefficient in FZG gears lubricated with industrial gear oils: Biodegradable ester vs. mineral oil.” Tribology International, 39:512- 521 14. Ho¨hn B-R, Michaelis K, Doleschel A. (2001). “Frictional behavior of synthetic gear lubricants.” Tribology research: From model experiment to Industrial Problem. Amsterdam: Elsevier. 15. Brajendra K. Sharma., Umer Rashid., Farooq Anwar., Sevim Z. Erhan.(2009). “Lubricant properties of Moringa oil using thermal and tribological techniques.” Springer. 16. A. B. Hassan, M. S. Abolarin, A. Nasir, and U. Ratchel. (2006). “Investigation on the Use of Palm Olein as Lubrication Oil.” Leonardo Electronic Journal of Practices and Technologies. 17. Radoslav Rakic. (2004). “The influence of lubricants on cam failure.” Tribologi International, 37: 365-373.
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Zakaria, Nazri Huzaimi Elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction
description	The issue of elastohydrodynamic lubricants in industry has been investigated by many researchers. Whereby many machine elements, such as gear teeth, cams and followers and rolling-element bearings are working under spinning and rolling conditions. Thus, the function of lubricant is to prevent friction and wear which causes material failure between two surfaces. Bio-based lubricants are one of the possibilities that might be used as a substitute to the conventional lubricants in the industries. Therefore, in this research we focused on elastohydrodynamic lubrication flows at the elliptical conjunctions by using bio-based lubricants. The numerical approach is used in this study to determine the effect of elliptical conjunctions by using the Gambit and Fluent software. This software helps to verify the deformation of the pressure distribution at the conjunctions. We had obtained that at constant speed, the mineral oil has the highest value of dynamics pressure than bio-based lubricants along X and Y axis between two surfaces. So, the mineral oil will able to carry more load than bio-based lubricant. However, we obtain that the bio-based lubricant is the best lubricant to protect the surfaces from wear and damage than mineral oil because mineral oil has higher value of dynamics pressure than bio-based lubricant.
format	Thesis
qualification_level	Master's degree
author	Zakaria, Nazri Huzaimi
author_facet	Zakaria, Nazri Huzaimi
author_sort	Zakaria, Nazri Huzaimi
title	Elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction
title_short	Elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction
title_full	Elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction
title_fullStr	Elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction
title_full_unstemmed	Elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction
title_sort	elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2010
url	http://eprints.utm.my/id/eprint/11107/1/NazriHuzaimiZakariaMFKM2010.pdf
_version_	1747814812379774976

Elastohydrodynamics lubrication for bio-based lubricants in elliptical conjunction

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