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Monday, July 8 • 15:30 - 18:00
ONE-DIMENSIONAL TUNABLE LINEAR BIDIRECTIONAL ACOUSTIC DIODES

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We propose a design to realize a one-dimensional two-way unidirectional acoustic filter in the linear regime for the first time. This is down by combining the concept of functionally graded phononics and the free vibration characteristic of a finite-sized phononic structure. The key to this design is to locate a natural frequency precisely in a band gap, and we show theoretically here that this frequency should be associated with an edge mode. The efficiency of the acoustic diode is also discussed and optimized. Further, by making use of soft materials, we are able to realize a tunable acoustic filter through stretch.


Monday July 8, 2019 15:30 - 18:00 EDT
St-Laurent 3, Board 01-B

Attendees (7)