Theoretical study of a tunable phononic band gap system
- 31 July 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 64 (7), 075118
- https://doi.org/10.1103/physrevb.64.075118
Abstract
The control of acoustic-frequency gaps by altering the geometry of the system is analyzed in the particular case of a set of parallel solid square-section columns distributed in air on a square lattice. This system is shown to be sensitive enough to the rotation of the columns to be considered for practical sonic band-gap-width engineering. For different geometric configurations, specific interpretation models are used, taking into account the important mismatch of the impedance between the compounds. The accuracy of the plane-wave calculation is discussed in the different cases.Keywords
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