On Non-Newtonian Rabinowitsch Fluid Squeeze Film Lubrication between Rough Circular Stepped Plates
In this paper the effect of surface roughness on squeeze film lubrication between circular stepped plates is analysed. The modified non-linear averaged Reynolds type equation is derived on the basis of Christensen’s stochastic theory for rough surfaces for Rabinowitsch fluid model. Accordingly two t...
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| Format: | Article |
| Language: | English |
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Japanese Society of Tribologists
2016-08-01
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| Series: | Tribology Online |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/trol/11/4/11_519/_pdf/-char/en |
| _version_ | 1818682926054768640 |
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| author | Neminath Bujappa Naduvinamani Siddangouda Apparao Shivappa Siddappa Siddapur |
| author_facet | Neminath Bujappa Naduvinamani Siddangouda Apparao Shivappa Siddappa Siddapur |
| author_sort | Neminath Bujappa Naduvinamani |
| collection | DOAJ |
| description | In this paper the effect of surface roughness on squeeze film lubrication between circular stepped plates is analysed. The modified non-linear averaged Reynolds type equation is derived on the basis of Christensen’s stochastic theory for rough surfaces for Rabinowitsch fluid model. Accordingly two types of one-dimensional surface roughness patterns, viz., azimuthal roughness pattern and radial roughness pattern are considered. Averaged non-linear Reynolds equation is solved by using the small perturbation method. Expressions are obtained for the load carrying capacity, squeeze film time. It is observed that the effect of azimuthal (radial) surface roughness pattern on squeeze film lubrication between circular stepped plates with Rabinowitsch fluid is to increase (decrease) the load carrying capacity and squeeze film time significantly as compared to the smooth case and the squeeze film performance improves (suffers) due to the use of dilatant (pseudo plastic) lubricants. |
| first_indexed | 2024-12-17T10:26:36Z |
| format | Article |
| id | doaj.art-1e1ae376f37b4d78adf357f33475ee45 |
| institution | Directory Open Access Journal |
| issn | 1881-2198 |
| language | English |
| last_indexed | 2024-12-17T10:26:36Z |
| publishDate | 2016-08-01 |
| publisher | Japanese Society of Tribologists |
| record_format | Article |
| series | Tribology Online |
| spelling | doaj.art-1e1ae376f37b4d78adf357f33475ee452022-12-21T21:52:39ZengJapanese Society of TribologistsTribology Online1881-21982016-08-0111451952610.2474/trol.11.519trolOn Non-Newtonian Rabinowitsch Fluid Squeeze Film Lubrication between Rough Circular Stepped PlatesNeminath Bujappa Naduvinamani0Siddangouda Apparao1Shivappa Siddappa Siddapur2Department of Mathematics, Gulbarga UniversityDepartment of Mathematics, Appa Institute of Engineering & TechnologyDepartment of Mathematics, Government First Grade CollegeIn this paper the effect of surface roughness on squeeze film lubrication between circular stepped plates is analysed. The modified non-linear averaged Reynolds type equation is derived on the basis of Christensen’s stochastic theory for rough surfaces for Rabinowitsch fluid model. Accordingly two types of one-dimensional surface roughness patterns, viz., azimuthal roughness pattern and radial roughness pattern are considered. Averaged non-linear Reynolds equation is solved by using the small perturbation method. Expressions are obtained for the load carrying capacity, squeeze film time. It is observed that the effect of azimuthal (radial) surface roughness pattern on squeeze film lubrication between circular stepped plates with Rabinowitsch fluid is to increase (decrease) the load carrying capacity and squeeze film time significantly as compared to the smooth case and the squeeze film performance improves (suffers) due to the use of dilatant (pseudo plastic) lubricants.https://www.jstage.jst.go.jp/article/trol/11/4/11_519/_pdf/-char/ensurface roughnessazimuthal and radial roughnessrabinowitsch fluidsqueeze filmcircular stepped plates |
| spellingShingle | Neminath Bujappa Naduvinamani Siddangouda Apparao Shivappa Siddappa Siddapur On Non-Newtonian Rabinowitsch Fluid Squeeze Film Lubrication between Rough Circular Stepped Plates Tribology Online surface roughness azimuthal and radial roughness rabinowitsch fluid squeeze film circular stepped plates |
| title | On Non-Newtonian Rabinowitsch Fluid Squeeze Film Lubrication between Rough Circular Stepped Plates |
| title_full | On Non-Newtonian Rabinowitsch Fluid Squeeze Film Lubrication between Rough Circular Stepped Plates |
| title_fullStr | On Non-Newtonian Rabinowitsch Fluid Squeeze Film Lubrication between Rough Circular Stepped Plates |
| title_full_unstemmed | On Non-Newtonian Rabinowitsch Fluid Squeeze Film Lubrication between Rough Circular Stepped Plates |
| title_short | On Non-Newtonian Rabinowitsch Fluid Squeeze Film Lubrication between Rough Circular Stepped Plates |
| title_sort | on non newtonian rabinowitsch fluid squeeze film lubrication between rough circular stepped plates |
| topic | surface roughness azimuthal and radial roughness rabinowitsch fluid squeeze film circular stepped plates |
| url | https://www.jstage.jst.go.jp/article/trol/11/4/11_519/_pdf/-char/en |
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