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Mixed and Fluid Film Lubrication Characteristics of Worn Journal Bearings
Joint Authors
Kazama, Toshiharu
Narita, Yukihito
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-13
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The mixed and fluid film lubrication characteristics of plain journal bearings with shape changed by wear are numerically examined.
A mixed lubrication model that employs both of the asperity-contact mechanism proposed by Greenwood and Williamson and the average flow model proposed by Patir and Cheng includes the effects of adsorbed film and elastic deformation is applied.
Considering roughness interaction, the effects of the dent depth and operating conditions on the loci of the journal center, the asperity-contact and hydrodynamic fluid pressures, friction, and leakage are discussed.
The following conclusions are drawn.
In the mixed lubrication regime, the dent of the bearing noticeably influences the contact and fluid pressures.
For smaller dents, the contact pressure and frictional coefficient reduce.
In mixed and fluid film lubrication regimes, the pressure and coefficient increase for larger dents.
Furthermore, as the dent increases and the Sommerfeld number decreases, the flow rate continuously increases.
American Psychological Association (APA)
Kazama, Toshiharu& Narita, Yukihito. 2012. Mixed and Fluid Film Lubrication Characteristics of Worn Journal Bearings. Advances in Tribology،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-461327
Modern Language Association (MLA)
Kazama, Toshiharu& Narita, Yukihito. Mixed and Fluid Film Lubrication Characteristics of Worn Journal Bearings. Advances in Tribology No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-461327
American Medical Association (AMA)
Kazama, Toshiharu& Narita, Yukihito. Mixed and Fluid Film Lubrication Characteristics of Worn Journal Bearings. Advances in Tribology. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-461327
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-461327