Nonlinear Acoustic Wedge Waves

Nonlinear Acoustic Wedge Waves
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非线性声学楔波

DOI:
10.1007/978-3-319-77504-3_8
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
A. P. Mayer
A. P. Mayer
中科院分区:
--
文献类型:
--
作者:
P. D. Pupyrev;A. M. Lomonosov;E. S. Sokolova;A. S. Kovalev;A. P. Mayer

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在各种类型的导声波中,声楔波是无衍射和无色散的。这两种性质使它们容易受到非线性效应的影响。近年来研究的重点是二阶非线性对各向异性的影响。在二维导声波,特别是表面波非线性特性的早期研究背景下,回顾了这些研究的现状。弱色散的作用,导致孤立波,也讨论了。对于在各向同性介质或各向异性介质中传播的反对称弯曲楔形波,推导了考虑楔形波有效三阶非线性的演化方程。对于出现在该方程非线性项中的核函数,给出了与拉盖尔函数重叠积分的表达式,从而可以对其进行定量数值计算。首先给出了弯曲楔波三次谐波产生效率的数值结果。
Among the various types of guided acoustic waves, acoustic wedge waves are non-diffractive and non-dispersive. Both properties make them susceptible to nonlinear effects. Investigations have recently been focused on effects of second-order nonlinearity in connection with anisotropy. The current status of these investigations is reviewed in the context of earlier work on nonlinear properties of two-dimensional guided acoustic waves, in particular surface waves. The role of weak dispersion, leading to solitary waves, is also discussed. For anti-symmetric flexural wedge waves propagating in isotropic media or in anisotropic media with reflection symmetry with respect to the wedge’s mid-plane, an evolution equation is derived that accounts for an effective third-order nonlinearity of acoustic wedge waves. For the kernel functions occurring in the nonlinear terms of this equation, expressions in terms of overlap integrals with Laguerre functions are provided, which allow for their quantitative numerical evaluation. First numerical results for the efficiency of third-harmonic generation of flexural wedge waves are presented.
DOI: 10.1016/j.ultras.2016.06.016
发表时间: 2016
期刊: Ultrasonics
影响因子: 4.2
作者:
P. D. Pupyrev;A. M. Lomonosov;A. Nikodijevic;A. P. Mayer
通讯作者: A. P. Mayer
DOI: 10.1103/physrevb.44.1266
发表时间: 1991
期刊: Physical review. B, Condensed matter
影响因子: --
作者:
Maugin;Hadouaj
通讯作者: Hadouaj
细长楔形物中的非线性声波
DOI: --
发表时间: 1994
期刊:
影响因子: --
作者:
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非线性表面声波:孤立脉冲和断裂的实现。
DOI: --
发表时间: 2008
期刊: Ultrasonics
影响因子: 4.2
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DOI: --
发表时间: 1982
期刊:
影响因子: --
作者:
N. Kalyanasundaram;R. Ravindran;P. Prasad
通讯作者: P. Prasad