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On control of harmonic waves in an acoustic metamaterial
Mechanics Research Communications ( IF 1.9 ) Pub Date : 2021-07-19 , DOI: 10.1016/j.mechrescom.2021.103745
A.V. Porubov 1 , I.D. Antonov 1
Affiliation  

Generation of harmonic waves in a mass-in mass model of an acoustic metamaterial is considered. It is shown numerically that outside the band gap, the boundary harmonic excitation gives rise to a formation of periodic waves whose profile gradually coincides with the profile of the exact traveling wave harmonic solution. No waves are generated by the boundary excitation inside the band gap. A switch-on/off control is developed to achieve the formation of the harmonic waves inside the band gap.

中文翻译:

声学超材料中谐波的控制

考虑了声学超材料的质量模型中谐波的产生。数值表明,在带隙之外,边界谐波激励会形成周期波,其轮廓逐渐与精确的行波谐波解的轮廓一致。带隙内的边界激发不会产生波。开发了开关控制来实现带隙内谐波的形成。
更新日期:2021-07-19
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