Lubrication of journal bearings - Influence of stress jump condition at the porous-media/fluid film interface

Ming Da Chen; Kuo Ming Chang; Jau Wen Lin; Wang Long Li

doi:10.1016/S0301-679X(02)00004-X

Lubrication of journal bearings - Influence of stress jump condition at the porous-media/fluid film interface

Ming Da Chen, Kuo Ming Chang, Jau Wen Lin, Wang Long Li

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

In this study, the microstructure of bearing surface is modeled as a thin porous film press-fitted on an impermeable surface. On the basis of the Brinkman-extended Darcy model with stress jump condition at the porous-media/fluid film interface, the effects of viscous shear stress and stress jump on the performance of finite journal bearings are examined. The Elrod algorithm as well as the successive over-relaxation method is utilized to solve the modified Reynolds equation and determine the accurate cavitation region. The results show that the increase in stress jump parameter (β) provides a decrease in the load capacity, an increase in the attitude angle, and an increase in the coefficient of friction.

Original language	English
Pages (from-to)	287-295
Number of pages	9
Journal	Tribology International
Volume	35
Issue number	5
DOIs	https://doi.org/10.1016/S0301-679X(02)00004-X
Publication status	Published - 2002 May

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/S0301-679X(02)00004-X

Cite this

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title = "Lubrication of journal bearings - Influence of stress jump condition at the porous-media/fluid film interface",

abstract = "In this study, the microstructure of bearing surface is modeled as a thin porous film press-fitted on an impermeable surface. On the basis of the Brinkman-extended Darcy model with stress jump condition at the porous-media/fluid film interface, the effects of viscous shear stress and stress jump on the performance of finite journal bearings are examined. The Elrod algorithm as well as the successive over-relaxation method is utilized to solve the modified Reynolds equation and determine the accurate cavitation region. The results show that the increase in stress jump parameter (β) provides a decrease in the load capacity, an increase in the attitude angle, and an increase in the coefficient of friction.",

author = "Chen, {Ming Da} and Chang, {Kuo Ming} and Lin, {Jau Wen} and Li, {Wang Long}",

note = "Funding Information: This research was supported by NSC at ROC, Contract No. NSC89-2212-E-151-001-. ",

year = "2002",

month = may,

doi = "10.1016/S0301-679X(02)00004-X",

language = "English",

volume = "35",

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T1 - Lubrication of journal bearings - Influence of stress jump condition at the porous-media/fluid film interface

AU - Chen, Ming Da

AU - Chang, Kuo Ming

AU - Lin, Jau Wen

AU - Li, Wang Long

N1 - Funding Information: This research was supported by NSC at ROC, Contract No. NSC89-2212-E-151-001-.

PY - 2002/5

Y1 - 2002/5

N2 - In this study, the microstructure of bearing surface is modeled as a thin porous film press-fitted on an impermeable surface. On the basis of the Brinkman-extended Darcy model with stress jump condition at the porous-media/fluid film interface, the effects of viscous shear stress and stress jump on the performance of finite journal bearings are examined. The Elrod algorithm as well as the successive over-relaxation method is utilized to solve the modified Reynolds equation and determine the accurate cavitation region. The results show that the increase in stress jump parameter (β) provides a decrease in the load capacity, an increase in the attitude angle, and an increase in the coefficient of friction.

AB - In this study, the microstructure of bearing surface is modeled as a thin porous film press-fitted on an impermeable surface. On the basis of the Brinkman-extended Darcy model with stress jump condition at the porous-media/fluid film interface, the effects of viscous shear stress and stress jump on the performance of finite journal bearings are examined. The Elrod algorithm as well as the successive over-relaxation method is utilized to solve the modified Reynolds equation and determine the accurate cavitation region. The results show that the increase in stress jump parameter (β) provides a decrease in the load capacity, an increase in the attitude angle, and an increase in the coefficient of friction.

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Lubrication of journal bearings - Influence of stress jump condition at the porous-media/fluid film interface

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