The Air Lubrication Behavior of a Kingsbury Thrust Bearing Demonstration
In order to understand the air lubrication behavior of Kingsbury thrust bearing demonstration, an experimental and theoretical investigation on a simulated Kingsbury thrust bearing was presented. The motions of the thrust disk and tilting pads were measured by eddy current sensors for three mass loa...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2021/6690479 |
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| author | Wanjun Xu Jiangang Yang |
| author_facet | Wanjun Xu Jiangang Yang |
| author_sort | Wanjun Xu |
| collection | DOAJ |
| description | In order to understand the air lubrication behavior of Kingsbury thrust bearing demonstration, an experimental and theoretical investigation on a simulated Kingsbury thrust bearing was presented. The motions of the thrust disk and tilting pads were measured by eddy current sensors for three mass load cases. A simplified theoretical model governing the motion of the thrust disk was established. The bearing successfully passed the examination of lamp extinction and maintained the maximum rotation time of 16 s. The effective hydrodynamic film with a thickness of about 5 μm was concentrated on the middle region of the working surface under a flatness of 0.010 mm. The adverse effect of the three surface bumps was minimized by the swing motion of tilting pads. Moreover, about 1/3 air film thickness was shown to be wasted due to the surface irregularity. However, the requirements of surface quality and misalignment were appropriately relaxed through the design of the centrally pivoted tilting pads. This design is conducive to thin-film lubrication and is a potential application for microturbines. |
| format | Article |
| id | doaj-art-e84da9bebea7453e8e6a1be9320ec100 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-e84da9bebea7453e8e6a1be9320ec1002025-02-03T01:20:32ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342021-01-01202110.1155/2021/66904796690479The Air Lubrication Behavior of a Kingsbury Thrust Bearing DemonstrationWanjun Xu0Jiangang Yang1School of Energy and Power Engineering, Nanjing Institute of Technology, Nanjing 211167, ChinaSchool of Energy and Environment, Southeast University, Nanjing 210096, ChinaIn order to understand the air lubrication behavior of Kingsbury thrust bearing demonstration, an experimental and theoretical investigation on a simulated Kingsbury thrust bearing was presented. The motions of the thrust disk and tilting pads were measured by eddy current sensors for three mass load cases. A simplified theoretical model governing the motion of the thrust disk was established. The bearing successfully passed the examination of lamp extinction and maintained the maximum rotation time of 16 s. The effective hydrodynamic film with a thickness of about 5 μm was concentrated on the middle region of the working surface under a flatness of 0.010 mm. The adverse effect of the three surface bumps was minimized by the swing motion of tilting pads. Moreover, about 1/3 air film thickness was shown to be wasted due to the surface irregularity. However, the requirements of surface quality and misalignment were appropriately relaxed through the design of the centrally pivoted tilting pads. This design is conducive to thin-film lubrication and is a potential application for microturbines.http://dx.doi.org/10.1155/2021/6690479 |
| spellingShingle | Wanjun Xu Jiangang Yang The Air Lubrication Behavior of a Kingsbury Thrust Bearing Demonstration International Journal of Rotating Machinery |
| title | The Air Lubrication Behavior of a Kingsbury Thrust Bearing Demonstration |
| title_full | The Air Lubrication Behavior of a Kingsbury Thrust Bearing Demonstration |
| title_fullStr | The Air Lubrication Behavior of a Kingsbury Thrust Bearing Demonstration |
| title_full_unstemmed | The Air Lubrication Behavior of a Kingsbury Thrust Bearing Demonstration |
| title_short | The Air Lubrication Behavior of a Kingsbury Thrust Bearing Demonstration |
| title_sort | air lubrication behavior of a kingsbury thrust bearing demonstration |
| url | http://dx.doi.org/10.1155/2021/6690479 |
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