A two scale method for modulated vibration modes of large,nearly repetitive,structuresUne méthode asymptotique à deux échelles pour les modes de vibrations modulés des longues structures presque répétitives |
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Authors: | El Mostafa Daya Khalid Jeblaoui Michel Potier-Ferry |
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Affiliation: | Laboratoire de physique et mécanique des matériaux, UMR CNRS 7554, Université de Metz, ISGMP, Ile du Saulcy, 57045 Metz cedex 01, France |
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Abstract: | Nearly repetitive structures can present at least two kinds of vibration modes: localized modes and modulated ones. In this Note, the multiple scale method is applied to characterize a packet of modulated modes. In this respect, only small size problems are to be solved: periodic problems posed on a few basic cells and amplitude equations, which define a sort of homogenized model for this type of modes. It is established that the influence of the non-repetitive part of the structure is accounted by a boundary condition. To cite this article: E.M. Daya et al., C. R. Mecanique 331 (2003). |
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Keywords: | Computational solid mechanics Solids and structures Mécanique des solides numérique Solides et structures |
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