Paper published in a book (Scientific congresses and symposiums)
Influence of the inter‐stage coupling flexibility on the dynamics of multi‐stage rotors
Nyssen, Florence; Golinval, Jean-Claude
2016In Proceedings of the ASME Turbo Expo 2016
Peer reviewed
 

Files


Full Text
GT2016-57212-1.pdf
Publisher postprint (5.51 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Turbomachinery; Bladed disks; Multi-stage; Inter-stage coupling
Abstract :
[en] In this work, a characterization of the inter-stage coupling in a one-piece multi-stage bladed structure is performed. More particularly, the effect of the inter-stage coupling flexibility on the mode-shapes is evaluated. To this purpose, the MAC matrix between the mono-stage and multi-stage modes is computed for different drum Young’s modulus of the inter-stage coupling. In parallel, the strain energy located in the blades and in the connecting structure is computed for different levels of inter-stage coupling. This enables to establish a criterion to determine when a multi-stage finite element analysis is necessary instead of only computing the different mono-stage models separately. This criterion is based on the localization of the energy in the structure. Numerical analyses are performed on a two-stages academic bladed structure.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Nyssen, Florence ;  Université de Liège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Golinval, Jean-Claude  ;  Université de Liège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Language :
English
Title :
Influence of the inter‐stage coupling flexibility on the dynamics of multi‐stage rotors
Publication date :
June 2016
Event name :
ASME Turbo Expo 2016
Event place :
Seoul, South Korea
Event date :
du 13 au 17 juin 2016
Audience :
International
Main work title :
Proceedings of the ASME Turbo Expo 2016
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 15 July 2016

Statistics


Number of views
79 (9 by ULiège)
Number of downloads
3 (3 by ULiège)

Scopus citations®
 
0
Scopus citations®
without self-citations
0
OpenCitations
 
0

Bibliography


Similar publications



Contact ORBi