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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18031
Title: Performance of constant flow valve compensated hole-entry hybrid journal bearing lubricated with couple stress lubricant
Authors: Ram N.
Sharma, Satish Chandra
Published in: Proceedings of Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012
Abstract: The use of non-Newtonian lubricants has received greater attention due to the requirement of modern machine elements. The addition of small amount of long chain polymer solutions to the Newtonian lubricants gives the most desirable lubricating performance. The classical theory of Newtonian fluids neglect the size of fluid particles, it fails to describe the behavior of non-Newtonian fluids such as polymer thickened oils, lubricants with various additives, synthetic and bio-fluids. The lubricants containing long chain polymer molecules can be represented by couple stress lubricant. In the present study, the performance of constant flow valve compensated hole-entry hybrid journal bearing operating with couple stress lubricant has been presented analytically. The modified Reynolds equation based on Stoke's couple stress fluid theory has been solved by using the Finite Element Method. The numerically simulated results have been presented for various valves of couple stress parameters. The numerically simulated results reveal that the value of minimum fluid film thickness is higher for a bearing lubricated with couple stress lubricant vis-a-vis the Newtonian lubricant.
Citation: Proceedings of Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012, (2012), 110- 112. St. Louis, MO
URI: http://repository.iitr.ac.in/handle/123456789/18031
Issue Date: 2012
Keywords: Constant flow valve restrictor
Couple stress lubricant
Hybrid journal bearings
ISBN: 9.78E+12
Author Scopus IDs: 46061314700
8142901100
Author Affiliations: Ram, N., Department of Mechanical and Automation Engineering, Indira Gandhi Institute of Engineering and Technology, GGSIPU, Kashmere Gate, Delhi 110006, India
Sharma, S.C., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247 667, India
Corresponding Author: Ram, N.; Department of Mechanical and Automation Engineering, Indira Gandhi Institute of Engineering and Technology, GGSIPU, Kashmere Gate, Delhi 110006, India; email: n.r.jaan10@gmail.com
Appears in Collections:Conference Publications [ME]

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