Abstract
Abstract
We propose a density-near-zero piezoelectric metamaterial for realizing tunable sound transmission in real-time. The proposed mechanism is that the static voltage exerted on piezoelectric patches breaks the tension balance of the middle membrane, making the resonance frequency of the hybrid membrane structure dependence of static voltage. The numerical results verify the theoretical predictions and the effectiveness of the resulting device is demonstrated via multi-extraordinary phenomena at two predesigned frequencies. We anticipate our methodology to offer new possibilities for metamaterial-based piezoelectric devices and may promote applications in various fields such as acoustic communication.
Funder
National Natural Science Foundation of China
Subject
General Physics and Astronomy,General Engineering
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献