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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18037
Title: Performance of an orifice compensated non-recessed hole-entry hybrid journal bearing operating with micropolar lubricant
Authors: Sharma S.C.
Ram N.
Published in: Proceedings of Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2011
Abstract: In many industrial applications, mainly the polymer thickened oils or lubricants blended with additives are used. The lubricants become heavily contaminated with suspended metal particles or due to dirt during the operation and hence they start exhibiting the non-Newtonian behavior. The lubricant containing suspended additives behave as a fluid suspension and thus, the classical theory of Newtonian fluid is not applicable to predict their behavior. In the present study, theoretical investigation describing the performance of hole-entry hybrid journal bearing has been undertaken using micropolar lubricant. The modified Reynolds equation applicable for micropolar lubricant is solved using FEM and Newton Raphson Method. The numerically simulated results have been presented for a wide range of values of non-dimensional restrictor design parameter and micropolar parameters. The numerically simulated results reveals that the value of direct fluid film damping coefficients is larger for the micropolar lubricant vis a vis the newtonian lubricant.
Citation: Proceedings of Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2011, (2011), 234- 236. Atlanta, GA
URI: http://repository.iitr.ac.in/handle/123456789/18037
Issue Date: 2011
Keywords: Hybrid journal bearings
Micropolar lubricant
Orifice restrictor
ISBN: 9.78E+12
Author Scopus IDs: 8142901100
46061314700
Author Affiliations: Sharma, S.C., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247 667, India
Ram, N., Department of Mechanical and Automation Engineering, Indira Gandhi Institute of Engineering and Technology (GGSIPU), Kashmere Gate, Delhi 110006, India
Corresponding Author: Sharma, S.C.; Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247 667, India; email: sshmefme@iitr.ernet.in
Appears in Collections:Conference Publications [ME]

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