Modal Analysis of a Nonlinear Periodic Structure with Cyclic Symmetry

Georgiades, Fostios; Peeters, Maxime; Kerschen, Gaëtan; Golinval, Jean-Claude; Ruzzene, M.

doi:10.2514/1.40461

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Article (Scientific journals)

Modal Analysis of a Nonlinear Periodic Structure with Cyclic Symmetry

Georgiades, Fostios; Peeters, Maxime; Kerschen, Gaëtan et al.

2009 • In AIAA Journal, 47, p. 1014-1025

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/37208

DOI
10.2514/1.40461

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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 :

Pages :

1014-1025

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 19 May 2010

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