Analysis of Two-layered Porous Journal Bearing using the Brinkman Model
The present study evaluates the effects of two-layered long porous journal bearing configuration on improvement in load capacity and reduction in coefficient of friction. The Brinkman model is utilized to model the flow in the porous region. A modified form of Reynolds equation is derived considerin...
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| Main Authors: | , , , |
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| Format: | Citation Index Journal |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://eprints.utp.edu.my/9243/1/JAS_2610-2615.pdf http://eprints.utp.edu.my/9243/ |
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| Summary: | The present study evaluates the effects of two-layered long porous journal bearing configuration on improvement in load capacity and reduction in coefficient of friction. The Brinkman model is utilized to model the flow in the porous region. A modified form of Reynolds equation is derived considering two-layered porous region adjacent to the bearing surface. The non-dimensional pressure and shear stress expressions are obtained using the Reynolds boundary conditions. Results of non-dimensional load capacity and coefficient of friction are presented as a function of permeability and thickness of porous layers. Based on the results presented in the study, a low permeability porous layer that adheres to high permeability porous layer on bearing surface could significantly enhance load capacity and reduce coefficient of friction. |
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