Jørgen W. Lund: Theories Versus Tests, Part 2: Damped Critical Speeds of Rotors and Fluid Film Bearing CharacteristicsSource: Journal of Vibration and Acoustics:;2003:;volume( 125 ):;issue: 004::page 489Author:Jørgen Tonnesen
DOI: 10.1115/1.1610007Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experiments are conducted on two rotors, weighing 40 and 187.5 kg, respectively, and supported in cylindrical bearings with two axial grooves. The journal position is measured in the bearing with built-in capacitance displacement probes, and the dynamic behavior is monitored with pressure probes. The self-excited whirl at the threshold speed of instability, as well as the influence of unbalance on the whirl frequency, is investigated in detail. By adding damping at the supports, the heavier rotor is stabilized and is operated up to 20,000 RPM. Correlation with the theoretical predictions is presented.
keyword(s): Bearings , Rotors AND Fluid films ,
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| contributor author | Jørgen Tonnesen | |
| date accessioned | 2017-05-09T00:11:49Z | |
| date available | 2017-05-09T00:11:49Z | |
| date copyright | October, 2003 | |
| date issued | 2003 | |
| identifier issn | 1048-9002 | |
| identifier other | JVACEK-28867#489_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/129325 | |
| description abstract | Experiments are conducted on two rotors, weighing 40 and 187.5 kg, respectively, and supported in cylindrical bearings with two axial grooves. The journal position is measured in the bearing with built-in capacitance displacement probes, and the dynamic behavior is monitored with pressure probes. The self-excited whirl at the threshold speed of instability, as well as the influence of unbalance on the whirl frequency, is investigated in detail. By adding damping at the supports, the heavier rotor is stabilized and is operated up to 20,000 RPM. Correlation with the theoretical predictions is presented. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Jørgen W. Lund: Theories Versus Tests, Part 2: Damped Critical Speeds of Rotors and Fluid Film Bearing Characteristics | |
| type | Journal Paper | |
| journal volume | 125 | |
| journal issue | 4 | |
| journal title | Journal of Vibration and Acoustics | |
| identifier doi | 10.1115/1.1610007 | |
| journal fristpage | 489 | |
| journal lastpage | 494 | |
| identifier eissn | 1528-8927 | |
| keywords | Bearings | |
| keywords | Rotors AND Fluid films | |
| tree | Journal of Vibration and Acoustics:;2003:;volume( 125 ):;issue: 004 | |
| contenttype | Fulltext |