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Three-dimensional nonreciprocal transmission in a layered nonlinear elastic wave metamaterial

机译:层叠非线性弹性波超材料中的三维非探测传输

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摘要

In this investigation, three-dimensional nonreciprocal transmission is realized by the combination of structural asymmetry and material nonlinearity. Analytical solutions of the coupled quasi-longitudinal (qP) and quasishear (qS(1) and qS(2)) waves are derived. According to Bloch's law and the stiffness matrix method, we obtain the band gaps and the transmission coefficients of the fundamental and double frequency waves. We also discuss the effects of the incident azimuthal angle on the propagation behaviors in nonlinear phononic crystals and elastic wave metamaterials. This present work is expected to help design practical devices of nonreciprocal transmission with vector characteristics.
机译:在该研究中,通过结构不对称和材料非线性的组合来实现三维非探测器。导出耦合准纵向(QP)和Quasishear(QS(1)和QS(2))波的分析解。根据Bloch的定律和刚度矩阵方法,我们获得了基本和双频波的带间隙和传动系数。我们还讨论了事件方位角对非线性声晶体和弹性波超材料中的传播行为的影响。该目前的工作有望帮助设计具有载体特性的非探测器的实用装置。

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