Article (Scientific journals)
Modal Analysis of a Nonlinear Periodic Structure with Cyclic Symmetry
Georgiades, Fostios; Peeters, Maxime; Kerschen, Gaëtan et al.
2009In AIAA Journal, 47, p. 1014-1025
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Keywords :
Modal Analysis; Nonlinear Periodic Structure; Cyclic Symmetry
Abstract :
[en] The objective of this paper is to examine nonlinear normal modes and their bifurcations in cyclic periodic structures. The nonlinear normal modes are computed using a numerical technique that combines shooting and pseudoarclength continuation. Unlike perturbation techniques, the resulting algorithm can investigate strongly nonlinear regimes of motion. This study reveals that modal interactions may occur without necessarily having commensurate natural frequencies in the underlying linear system. In addition, a countable infinity of such modal Q2 interactions are shown to exist in the system.
Disciplines :
Mechanical engineering
Author, co-author :
Georgiades, Fostios
Peeters, Maxime ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Kerschen, Gaëtan  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Golinval, Jean-Claude  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Ruzzene, M.;  Georgia Institute of Technology, Atlanta, Georgia 30332
Language :
English
Title :
Modal Analysis of a Nonlinear Periodic Structure with Cyclic Symmetry
Publication date :
2009
Journal title :
AIAA Journal
ISSN :
0001-1452
eISSN :
1533-385X
Publisher :
American Institute of Aeronautics and Astronautics, Reston, United States - Virginia
Volume :
47
Pages :
1014-1025
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 May 2010

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