| contributor author | Guangyoung Sun | |
| date accessioned | 2017-05-09T00:22:15Z | |
| date available | 2017-05-09T00:22:15Z | |
| date copyright | April, 2006 | |
| date issued | 2006 | |
| identifier issn | 1048-9002 | |
| identifier other | JVACEK-28879#203_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/134969 | |
| description abstract | A rotating machine with active magnetic bearings (AMBs) requires conventional bearings as a backup support system in the case of AMB failure. This paper presents an estimated auxiliary/catcher bearing (CB) L10 fatigue life based on the Hertzian contact dynamic loads between bearing ball and races during the touchdown. The thermal growths of bearing components are predicted using a one-dimensional thermal model, and the resulting expansions contribute to the calculation for the Hertzian contact loads. Numerical simulations for an energy-storage flywheel module reveal that a high-speed backward whirl significantly reduces the CB life and that an optimal damping lowers the CB temperature and increases the CB life. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Auxiliary Bearing Life Prediction Using Hertzian Contact Bearing Model | |
| type | Journal Paper | |
| journal volume | 128 | |
| journal issue | 2 | |
| journal title | Journal of Vibration and Acoustics | |
| identifier doi | 10.1115/1.2159036 | |
| journal fristpage | 203 | |
| journal lastpage | 209 | |
| identifier eissn | 1528-8927 | |
| keywords | Force | |
| keywords | Stress | |
| keywords | Bearings | |
| keywords | Rotors | |
| keywords | Drops | |
| keywords | Damping | |
| keywords | Fatigue life AND Whirls | |
| tree | Journal of Vibration and Acoustics:;2006:;volume( 128 ):;issue: 002 | |
| contenttype | Fulltext | |
