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A Methodology for The Appropriation And The Isolation of Nodal Diameter Modes in Cyclic Symmetric Structures
Nyssen, Florence; Viguié, Régis; Simon, Daniel et al.
2013In Proceedings of ASME 2013 International Design Engineering Technical Conference & Computers and Information in Engineering Conference IDETC/CIE 2013
Peer reviewed
 

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Keywords :
Bladed disks; Nodal diameter modes; Appropriate excitation
Abstract :
[en] This paper presents a methodology enabling the appropriation and the isolation of a chosen nodal diameter modes in cyclic symmetric structures. In particular, a study about the minimum number and the optimized location of the excitation sources required in laboratory conditions to isolate a specific nodal diameter mode is conducted. This work includes a theoretical approach based on energy concepts. It is followed by the numerical and experimental validations on a stator stage of an axial compressor. The concept of modal appropriation is investigated here as the first step of the calibration procedure before engine tests.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Nyssen, Florence ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Viguié, Régis
Simon, Daniel
Golinval, Jean-Claude  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Language :
English
Title :
A Methodology for The Appropriation And The Isolation of Nodal Diameter Modes in Cyclic Symmetric Structures
Publication date :
August 2013
Event name :
ASME2013 International Design Engineering Technical Conference & Computers and Information in Engineering Conference IDETC/CIE 2013 - 25th Conference on Mechanical Vibration and Noise
Event organizer :
ASME
Event place :
Portland, United States - Oregon
Event date :
du 4 août 2013 au 7 août 2013
Audience :
International
Journal title :
Proceedings of ASME 2013 International Design Engineering Technical Conference & Computers and Information in Engineering Conference IDETC/CIE 2013
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 12 September 2013

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