论文标题
梁的弯曲和压缩共振的表面波
Surface waves from flexural and compressional resonances of beams
论文作者
论文摘要
我们提出了一个三维模型,该模型描述了土壤基材中弹性波的传播,该土壤底物支持一系列具有弯曲和压缩共振的圆柱梁。所得的表面波有两种类型。在矢状平面中,杂交雷利波可以传播,除非在弯曲和压缩共振之间复杂的相互作用引起的带镜内。我们表现出与杂交雷利波(Rayleigh Wave)脱在一起的波,这是电磁欺骗等离子体极化子的弹性类似物。垂直于矢状平面的位移的波浪仅对弯曲共振敏感。在涉及板共振的二维环境中,在二维环境中证明了类似但数量不同的物理学。
We present a three-dimensional model describing the propagation of elastic waves in a soil substrate supporting an array of cylindrical beams experiencing flexural and compressional resonances. The resulting surface waves are of two types. In the sagittal plane, hybridized Rayleigh waves can propagate except within bandgaps resulting from a complex interplay between flexural and compressional resonances. We exhibit a wave decoupled from the hybridized Rayleigh wave which is the elastic analogue of electromagnetic spoof plasmon polaritons. This wave with displacements perpendicular to the sagittal plane is sensitive only to flexural resonances. Similar, yet quantitatively different, physics is demonstrated in a two-dimensional setting involving resonances of plates.