Vertical mode for an immersed structure composed of two elastic layers coupled by a thin water film

M. Rousseau, F. Coulouvrat, O. Lenoir, H. Khelil, J. Izbicki
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引用次数: 2

Abstract

We aim at evaluating the thickness of a thin water film, coupling two elastic layers. By a plane acoustic wave approach, we have shown the existence of a particular eigen-mode, called the vertical mode (V-mode), which strongly depends on the fluid layer. The water film thickness is expressed as a function of the V-mode cut-off frequency. The value of this particular frequency is experimentally obtained by a retrodiffusion and resonance spectra analysis. However, in practice, the acoustic waves propagate as a bounded beam, and it is necessary to show that the measurement accuracy remains compatible with a plane wave approach
由水薄膜耦合的两个弹性层组成的浸入式结构的垂直模态
我们的目的是评估一个薄的水膜的厚度,耦合两个弹性层。通过平面声波方法,我们已经证明了一种特殊的本征模式的存在,称为垂直模式(v模式),它强烈依赖于流体层。水膜厚度表示为v型截止频率的函数。这个特定频率的值是通过反扩散和共振光谱分析实验得到的。然而,在实践中,声波作为有界波束传播,并且有必要表明测量精度仍然与平面波方法兼容
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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