Statistical Model for Asperity-contact Time Fraction in Elastohydrodynamic Lubrication PDF Download
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Author: S. M. Sidik
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
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Book Description
Relations for the asperity contact time fraction during elastohydrodynamic (EHD) lubrication of a typical ball bearing are presented. The analysis is based on a two-dimensional random surface model, and actual profile traces of the bearing surfaces were used as statistical sample records. The results of the analysis show that transition from 90 percent contact to 1 percent contact occurs within a dimensionless film thickness range of approximately 4 to 5. This thickness ratio is several times larger than reported in the literature where one-dimensional random surface models were used.
Author: S. M. Sidik
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
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Book Description
Relations for the asperity contact time fraction during elastohydrodynamic (EHD) lubrication of a typical ball bearing are presented. The analysis is based on a two-dimensional random surface model, and actual profile traces of the bearing surfaces were used as statistical sample records. The results of the analysis show that transition from 90 percent contact to 1 percent contact occurs within a dimensionless film thickness range of approximately 4 to 5. This thickness ratio is several times larger than reported in the literature where one-dimensional random surface models were used.
Author: Steven M. Sidik
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ISBN:
Category : Lubrication and lubricants
Languages : en
Pages : 50
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Author: John J. Coy
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Category :
Languages : en
Pages : 28
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Author: John J. Coy
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Category : Ball-bearings
Languages : en
Pages : 28
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Category : Aeronautics
Languages : en
Pages : 384
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Category : Science
Languages : en
Pages : 30
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Category : Aeronautics
Languages : en
Pages : 410
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Author:
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Category : Aeronautics
Languages : en
Pages : 1008
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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Category : Aeronautics
Languages : en
Pages : 844
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Author:
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Category : Government publications
Languages : en
Pages : 944
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