- Tytuł:
- Frequencies and modes of rotating flexible shrouded bladed discs-shaft assemblies
- Autorzy:
-
Sokołowski, J.
Rządkowski, R.
Kwapisz, L. - Powiązania:
- https://bibliotekanauki.pl/articles/1954654.pdf
- Data publikacji:
- 2003
- Wydawca:
- Politechnika Gdańska
- Tematy:
-
blades
discs
shaft
free vibration - Opis:
- It is now increasingly necessary to predict accurately, at the design stage and without excessive computing costs, the dynamic behaviour of rotating parts of turbomachines, so that resonant conditions at operating speeds are avoided. In this study, global rotating mode shapes of flexible shrouded bladed disc-shaft assemblies are calculated. The rotating modes have been calculated by using a finite element cyclic symmetry approach. Rotational effects, such as centrifugal stiffening have been accounted for, and all the possible couplings between the flexible parts have been allowed. Gyroscopic effects have been neglected. The numerical results have been compared with the experimental. The calculations show the influence of shaft flexibility on the natural frequencies of shrouded bladed discs up to four nodal diameters for the two first frequencies series.
- Źródło:
-
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2003, 7, 2; 215-231
1428-6394 - Pojawia się w:
- TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
- Dostawca treści:
- Biblioteka Nauki
Artykuł