Abstract
Based on the single deck protuberant foil gas bearing, a new type of foil bearing composed of multi-decked structure was proposed. The relative position of the protuberant of different decks arranged to produce variable stiffness and damping effects. This new configuration possesses controllable stiffness in axial and circumferential direction, as well as the additional coulomb damping between the stacked layers, could improve the bearing stability. In the experiment, the maximal running speed of the 25mm diameter rotor in the turbo-expander reached 99044 r/min. In the whole speed up and down processes, the amplitude of subsynchronous whirl is small which verifies the suppression effect of the new configuration, therefore, this new foil bearing can be applied in high speed turbomachinery.
| Original language | English |
|---|---|
| Pages (from-to) | 415-418 |
| Number of pages | 4 |
| Journal | Dongbei Daxue Xuebao/Journal of Northeastern University |
| Volume | 35 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2014 |
Keywords
- Blister foil
- Controllable stiffness
- Gas bearing
- High speed turbomachinery
- Multi-decked structure
Fingerprint
Dive into the research topics of 'Experimental study on the performance of multi-decked elastic support protuberant foil gas bearing'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver