
Noon Digital Resources
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On the Understanding of the Concept of Propagation Surfaces for Periodic Plates with Shunted Piezoelectric Patches
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Abstract
The concept of propagation surfaces has been associated with two
dimensional periodic structures since it was introduced more than 20 years
ago. However, the physical interpretation of the surfaces has not been
clarified in the vast amount of literature that used those surfaces to
represent the characteristics of periodic plates. In this paper, an attempt
is made to present the propagation surfaces from a different perspective
through which a better understanding of their physical meaning could be
achieved. Further, the propagation surfaces of a periodic plate with shunted
piezoelectric patches bonded to its surface are used to emphasize this
understanding and demonstrate the effect of the shunting circuit parameters
on tuning the wave propagation filtering characteristics of the plate. |
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