Georgiades, Fotios, Peeters, Maxime, Kerschen, Gaetan , Golinval, Jean-Claude and Ruzzene, Massimo (2009) Modal analysis of a nonlinear periodic structure with cyclic symmetry. AIAA, 47 (4). pp. 1014-1025. ISSN 0001-1452
Full content URL: http://arc.aiaa.org/doi/abs/10.2514/1.40461
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NnmsAIAA_v2.pdf - Whole Document 559kB |
| Item Type: | Article |
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| Item Status: | Live Archive |
Abstract
This paper carries out modal analysis of a nonlinear periodic structure with cyclic symme-
try. The nonlinear normal mode (NNM) theory is brie°y described, and a computational
algorithm for the NNM computation is presented. The results obtained on a simpli¯ed
model of a bladed assembly show that this system possesses a very complicated struc-
ture of NNMs, including similar and nonsimilar NNMs, nonlocalized and localized NNMs,
bifurcating and internally resonant NNMs. Modal interactions that occur without neces-
sarily having commensurate natural frequencies in the underlying linear system are also
discussed.
| Keywords: | modal analysis, Georgiadis |
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| Subjects: | H Engineering > H340 Acoustics and Vibration H Engineering > H310 Dynamics H Engineering > H342 Vibration H Engineering > H400 Aerospace Engineering H Engineering > H140 Mechanics H Engineering > H300 Mechanical Engineering |
| Divisions: | College of Science > School of Engineering |
| ID Code: | 9471 |
| Deposited On: | 15 May 2013 20:40 |
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