Abstract
The effects of the relation between the system torsional natural frequency and the blade first-bending natural frequency are investigated in this study. A model that couples the system torsional deformations and the blade bending deformations, based on the natural coordinate transformations, is utilized. The Assumed Modes Method is adopted as the approximation technique for the blade deformations. The numerical simulations have shown that there are ratios between the system torsional natural frequency and the blade-first bending natural frequency that give stable vibrations of the blade, e.g. the ratios 1/4 and 3/4. For the case when the torsional natural frequency is greater than the blade-first bending natural frequency, odd multiples 3 and 5 have shown also stable vibrations of the blade. Other even multiples and odd multiples greater than 5, have shown unstable blade vibrations.
| Original language | English |
|---|---|
| Pages (from-to) | 83-90 |
| Number of pages | 8 |
| Journal | American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP |
| Volume | 395 |
| State | Published - 1999 |
ASJC Scopus subject areas
- Mechanical Engineering
Fingerprint
Dive into the research topics of 'Effects of shaft-torsional and blade-bending natural frequencies relation on the dynamics of shaft-disk-blade system'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver