基于波传播方法的水下夹层圆柱壳振动特性：分析与实验研究

IF 1.2 4区工程技术 Q3 ACOUSTICS

Shock and Vibration Pub Date : 2024-04-24 DOI:10.1155/2024/9043790

Guoqiang Guo, Yinglong Zhao, Anbin Yu

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引用次数: 0

摘要

本文研究了带有粘弹性内核的水下夹层圆柱壳的振动特性。考虑到声-结构耦合，基于波传播方法和 Flügge 薄壳理论，推导出了水下夹层圆柱壳的分析模型，该模型可处理三种介质条件，包括流体填充、流体负载、流体填充和流体负载。分析了夹层圆柱壳在不同介质和边界条件下的振动特性，然后比较了约束阻尼层的阻尼效果。最后，分析了粘弹性层和约束层的厚度对充液和负载条件下振动频谱和固有频率的影响。为进行相关实验建立了一个实验平台。可以得出几个重要结论。

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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Vibration Properties of Submerged Sandwich Cylindrical Shell Based on Wave Propagation Approach: Analytical and Experimental Investigation

The vibration properties of the submerged sandwich cylindrical shell with a viscoelastic core are investigated in this paper. Considering the acoustic-structure coupling, the analytical model of the submerged sandwich cylindrical shell that can handle three medium conditions including fluid-filled, fluid-loaded, and fluid-filled and -loaded is derived based on the wave propagation approach and the Flügge thin-shell theory. The vibration properties of the sandwich cylindrical shell under different medium and boundary conditions are analyzed, followed by a comparison of the damping effect of the constrained damping layer. Finally, an analysis is conducted on the influence of thicknesses of viscoelastic and constrained layers on vibration spectrum and natural frequency under fluid-filled and -loaded conditions. An experimental platform was established to conduct relevant experiments. Several important conclusions can be drawn.

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来源期刊

Shock and Vibration 物理-工程：机械

CiteScore

3.40

自引率

6.20%

发文量

384

审稿时长

3 months

期刊介绍： Shock and Vibration publishes papers on all aspects of shock and vibration, especially in relation to civil, mechanical and aerospace engineering applications, as well as transport, materials and geoscience. Papers may be theoretical or experimental, and either fundamental or highly applied.