Selective mode excitation of Lamb wave in composite laminates for a circular and two ring‐shaped piezoelectric actuators,ZAMM - Journal of Applied Mathematics and Mechanics

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Selective mode excitation of Lamb wave in composite laminates for a circular and two ring‐shaped piezoelectric actuators
ZAMM - Journal of Applied Mathematics and Mechanics ( IF 2.3 ) Pub Date : 2020-08-20 , DOI: 10.1002/zamm.202000078
Evgenia Kirillova ₁ , Wolfgang Seemann ₂ , Maria Shevtsova ₁

Affiliation

In the current research the effect of the radius of a transducer, vibration frequency and anisotropic properties of the host structure on the occuring wave fields is analyzed. Semi‐analytical approach based on the Green's matrix representations and the Fourier transform is applied for calculation of dispersion curves and wave fields in two types of composite layups in a wide frequency‐thickness product range. The contribution of each wave mode in the excited wave field is analyzed. A method for decomposition of the Lamb waves is proposed and examined for the example of a combination of two ring‐shaped actuators.

中文翻译：

圆形和两个环形压电致动器的复合材料层板中兰姆波的选择性模式激发

在当前的研究中，分析了换能器的半径，振动频率和主体结构的各向异性对出现的波场的影响。基于格林矩阵表示法和傅立叶变换的半解析方法被用于计算在宽频率厚度乘积范围内两种复合叠层中的色散曲线和波场。分析了每种波模在激发波场中的贡献。提出了一种分解兰姆波的方法，并以两个环形致动器的组合为例进行了研究。

更新日期：2020-08-20

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