313 - What happens to frequency band-gaps width in finite repetitive medium?
Matos Neves M.
Abstract
Analysis and redesign of infinite periodic media done in former research allowed maximizing its frequency band-gaps width. The wave propagation analysis was done through a finite element method coupled with a Bloch-wave technique, and maximization through structural optimization techniques. At present text, the finite periodic structure case were obtained by cutting a given number of n1 by n2 cells from an infinite repetitive structure and a comparison on the wave propagation behaviour was done using acoustic finite element analysis (FEA). Recent results are presented and discussed to illustrate the author conclusions on main advantages and limitations of each model.
Citation
Matos Neves M.: What happens to frequency band-gaps width in finite repetitive medium?, CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7
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