Abstract
According to structural characteristics and kinetic characters of dual-rotor turbofan engine, a intershaft bearing test rig was developed to experiment and test vibration of a intershaft bearing with contact fatigue spalling. Defect characteristic octave frequency formula of intershaft bearing and a model was developed to describe the vibration signals and its envelope signals produced by a intershaft bearing with defect.
| Original language | English |
|---|---|
| Pages (from-to) | 2422-2426 |
| Number of pages | 5 |
| Journal | Hangkong Dongli Xuebao/Journal of Aerospace Power |
| Volume | 26 |
| Issue number | 11 |
| State | Published - Nov 2011 |
Keywords
- Defect characteristic octave frequency
- Fatigue spalling
- Intershaft bearing
- Outer race defect
- Turbofan engine
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