Reference : Nonlinear modal analysis and energy localization in a bladed disk assembly
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Mechanical engineering
Engineering, computing & technology : Computer science
Physical, chemical, mathematical & earth Sciences : Mathematics
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/18258
Nonlinear modal analysis and energy localization in a bladed disk assembly
English
Georgiades, Fotios [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux > > >]
Peeters, Maxime [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
Kerschen, Gaëtan mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Golinval, Jean-Claude mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
Ruzzenne, Massimo mailto [Georgia Institute of Technology Atlanta, Georgia > School of Aerospace Engineering > > >]
Jun-2008
ASME Turbo Expo 2008: Power for Land, Sea and Air, Berlin, 2008
Yes
International
ASME Turbo Expo 2008: Power for Land, Sea and Air
June 9-13, 2008
ASME Gas Turbine Technical Congress and Exposition
Berlin
Germany
[en] NONLINEAR MODAL ANALYSIS ; ENERGY LOCALIZATION ; BLADED DISK ASSEMBLY
[en] The objective of this study is to carry out modal analysis of nonlinear periodic structures using nonlinear normal modes (NNMs). The NNMs are computed numerically with a method developed in [18] that is using a combination of two techniques: a shooting procedureand a method for the continuation of periodic motion. The proposed methodology is applied to a simplified model of a perfectly cyclic bladed disk assembly with 30 sectors. The analysis shows that the considered model structure features NNMs characterized by strong energy localization in a few sectors. This feature has no linear counterpart, and its occurrence is associated with the frequencyenergy dependence of nonlinear oscillations.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/18258

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