Investigation of passive bearing in biomedical application
This report explores on the different designs of a squeeze flow bearing. The load-carrying capacity of different bearing designs will be examined. The parameters of a Spiral Groove Bearing were optimized and used as a basis for comparison. Three different designs of squeeze flow bearing, Design Bear...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2014
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| Online Access: | http://hdl.handle.net/10356/61573 |
| _version_ | 1811679427039330304 |
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| author | Xu, Henry GuanYu |
| author2 | Chan Weng Kong |
| author_facet | Chan Weng Kong Xu, Henry GuanYu |
| author_sort | Xu, Henry GuanYu |
| collection | NTU |
| description | This report explores on the different designs of a squeeze flow bearing. The load-carrying capacity of different bearing designs will be examined. The parameters of a Spiral Groove Bearing were optimized and used as a basis for comparison. Three different designs of squeeze flow bearing, Design Bearing_1, 2 and 3, were created to test the squeeze flow effects.
Experiments on all bearings were tested at 4 different film thicknesses. Positive pressures were achieved at film thickness of 0.15mm. Optimum SGB and Design Bearing_1 met the target by displaying positive pressure at film thickness of 0.15mm. On the other hand, Design Bearing_2 showed negative pressure at all film thickness regardless of rotational speed. Despite Design Bearing_3 being slightly better than Design Bearing_2 by displaying positive pressure at lower rotational speeds, the performance was way below that of Optimum SGB and Design bearing_1. As such, a study was done in search for an explanation for the trends displayed by Design Bearing_2 and 3, which was suggested that it might be due to cavitation.
Lastly, ranking on bearing was done to differentiate the performance in their load-carrying capacity. |
| first_indexed | 2024-10-01T03:08:59Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/61573 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:08:59Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/615732023-03-04T18:49:56Z Investigation of passive bearing in biomedical application Xu, Henry GuanYu Chan Weng Kong Wong Yew Wah School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering::Fluid mechanics This report explores on the different designs of a squeeze flow bearing. The load-carrying capacity of different bearing designs will be examined. The parameters of a Spiral Groove Bearing were optimized and used as a basis for comparison. Three different designs of squeeze flow bearing, Design Bearing_1, 2 and 3, were created to test the squeeze flow effects. Experiments on all bearings were tested at 4 different film thicknesses. Positive pressures were achieved at film thickness of 0.15mm. Optimum SGB and Design Bearing_1 met the target by displaying positive pressure at film thickness of 0.15mm. On the other hand, Design Bearing_2 showed negative pressure at all film thickness regardless of rotational speed. Despite Design Bearing_3 being slightly better than Design Bearing_2 by displaying positive pressure at lower rotational speeds, the performance was way below that of Optimum SGB and Design bearing_1. As such, a study was done in search for an explanation for the trends displayed by Design Bearing_2 and 3, which was suggested that it might be due to cavitation. Lastly, ranking on bearing was done to differentiate the performance in their load-carrying capacity. Bachelor of Engineering (Mechanical Engineering) 2014-06-12T05:29:53Z 2014-06-12T05:29:53Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/61573 en Nanyang Technological University 172 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering::Fluid mechanics Xu, Henry GuanYu Investigation of passive bearing in biomedical application |
| title | Investigation of passive bearing in biomedical application |
| title_full | Investigation of passive bearing in biomedical application |
| title_fullStr | Investigation of passive bearing in biomedical application |
| title_full_unstemmed | Investigation of passive bearing in biomedical application |
| title_short | Investigation of passive bearing in biomedical application |
| title_sort | investigation of passive bearing in biomedical application |
| topic | DRNTU::Engineering::Mechanical engineering::Fluid mechanics |
| url | http://hdl.handle.net/10356/61573 |
| work_keys_str_mv | AT xuhenryguanyu investigationofpassivebearinginbiomedicalapplication |