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One-dimensional linear bi-directional acoustic diodes: design principle and optimization (Conference Presentation)
Author(s): Weiqiu Chen; Yang Huang; Yingjie Chen

Paper Abstract

We have succeeded in designing a one-dimensional two-way unidirectional acoustic filter in the linear regime for the first time by combining the concept of functionally graded phononics and the free vibration characteristic of a finite-sized phononic structure. Such a design also enables the realization of a truly one-dimensional and linear bi-directional acoustic diode. 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.

Paper Details

Date Published: 3 April 2018
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Proc. SPIE 10600, Health Monitoring of Structural and Biological Systems XII, 1060016 (3 April 2018); doi: 10.1117/12.2294958
Show Author Affiliations
Weiqiu Chen, Zhejiang Univ. (China)
Yang Huang, Zhejiang Univ. (China)
Yingjie Chen, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 10600:
Health Monitoring of Structural and Biological Systems XII
Tribikram Kundu, Editor(s)

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