Effect of Bearing Compliance on Thermo-hydrodynamic Lubrication of High Speed Misaligned Journal Bearing Lubricated with Bubbly Oil
In the present work the effect of bearing compliance on the performance of high speed misaligned journal bearing lined with a compliant PTFE liner lubricated with bubbly oil at high speeds has been studied. The effect of induced oil film temperature due to shearing effect has been implemented. Hydro...
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Al-Khwarizmi College of Engineering – University of Baghdad
2015
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oai:doaj.org-article:31714a453762485cba1bb1bbd18e5c3f2021-12-02T02:42:17ZEffect of Bearing Compliance on Thermo-hydrodynamic Lubrication of High Speed Misaligned Journal Bearing Lubricated with Bubbly Oil 1818-1171https://doaj.org/article/31714a453762485cba1bb1bbd18e5c3f2015-03-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=99154https://doaj.org/toc/1818-1171In the present work the effect of bearing compliance on the performance of high speed misaligned journal bearing lined with a compliant PTFE liner lubricated with bubbly oil at high speeds has been studied. The effect of induced oil film temperature due to shearing effect has been implemented. Hydrodynamic effect of the complaint bearing and the influence of aerated oil have been examined by the classical thermohydrodynamic lubrication theory modified to include the effect of oil film turbulence and oil film temperature with suitable models for bubbly oil viscosity and density. The effect of liner elastic deformation has been implemented by using Winkler model. The effects of variable density and specific heat on the most importantbearing parameters such as maximum pressure, maximum temperature, bearing load carrying capacity and power losses have been investigated.The results obtained show that the oil film pressure and load carrying capacity increased for the bearing lubricated with bubbly oil of higher aeration level and smaller size of air bubbles. Including the effect of elastic deformation of the bearing liner reduces the oil film pressure, load carrying capacity and frictional power loss for the misaligned bearing working at the same circumstancesBasim Ajeel Abass Murtada Mohammed SahibAl-Khwarizmi College of Engineering – University of BaghdadarticleChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 11, Iss 1, Pp 19-31 (2015) |
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EN |
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Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 |
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Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Basim Ajeel Abass Murtada Mohammed Sahib Effect of Bearing Compliance on Thermo-hydrodynamic Lubrication of High Speed Misaligned Journal Bearing Lubricated with Bubbly Oil |
| description |
In the present work the effect of bearing compliance on the performance of high speed misaligned journal bearing lined with a compliant PTFE liner lubricated with bubbly oil at high speeds has been studied. The effect of induced oil film temperature due to shearing effect has been implemented. Hydrodynamic effect of the complaint bearing and the influence of aerated oil have been examined by the classical thermohydrodynamic lubrication theory modified to include the effect of oil film turbulence and oil film temperature with suitable models for bubbly oil viscosity and density. The effect of liner elastic deformation has been implemented by using Winkler model. The effects of variable density and specific heat on the most importantbearing parameters such as maximum pressure, maximum temperature, bearing load carrying capacity and power losses have been investigated.The results obtained show that the oil film pressure and load carrying capacity increased for the bearing lubricated with bubbly oil of higher aeration level and smaller size of air bubbles. Including the effect of elastic deformation of the bearing liner reduces the oil film pressure, load carrying capacity and frictional power loss for the misaligned bearing working at the same circumstances |
| format |
article |
| author |
Basim Ajeel Abass Murtada Mohammed Sahib |
| author_facet |
Basim Ajeel Abass Murtada Mohammed Sahib |
| author_sort |
Basim Ajeel Abass |
| title |
Effect of Bearing Compliance on Thermo-hydrodynamic Lubrication of High Speed Misaligned Journal Bearing Lubricated with Bubbly Oil |
| title_short |
Effect of Bearing Compliance on Thermo-hydrodynamic Lubrication of High Speed Misaligned Journal Bearing Lubricated with Bubbly Oil |
| title_full |
Effect of Bearing Compliance on Thermo-hydrodynamic Lubrication of High Speed Misaligned Journal Bearing Lubricated with Bubbly Oil |
| title_fullStr |
Effect of Bearing Compliance on Thermo-hydrodynamic Lubrication of High Speed Misaligned Journal Bearing Lubricated with Bubbly Oil |
| title_full_unstemmed |
Effect of Bearing Compliance on Thermo-hydrodynamic Lubrication of High Speed Misaligned Journal Bearing Lubricated with Bubbly Oil |
| title_sort |
effect of bearing compliance on thermo-hydrodynamic lubrication of high speed misaligned journal bearing lubricated with bubbly oil |
| publisher |
Al-Khwarizmi College of Engineering – University of Baghdad |
| publishDate |
2015 |
| url |
https://doaj.org/article/31714a453762485cba1bb1bbd18e5c3f |
| work_keys_str_mv |
AT basimajeelabass effectofbearingcomplianceonthermohydrodynamiclubricationofhighspeedmisalignedjournalbearinglubricatedwithbubblyoil AT murtadamohammedsahib effectofbearingcomplianceonthermohydrodynamiclubricationofhighspeedmisalignedjournalbearinglubricatedwithbubblyoil |
| _version_ |
1718402209774829568 |