含吸波材料的结构-声耦合系统灵敏度有限元/边界元分析

Q3 Engineering

International Journal for Engineering Modelling Pub Date : 2021-06-11 DOI:10.31534/engmod.2021.1.ri.04f

Xiu-fang Chen, Ling Yao, Ruhui Cheng, Xiaohui Yuan, Yanming Xu

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引用次数: 0

摘要

由于水中的声阻抗相对于机械阻抗不能被忽略，由可压缩流体中结构的振动引起的声辐射将对结构产生反应。因此，需要考虑流体与结构的相互作用。结构振动分析采用有限元法，声学分析采用边界元法。吸声材料用于减少参考区域中的散射声场。提出了一种全耦合结构声学系统的灵敏度分析方法。数值试验验证了该算法的正确性。

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Sensitivity Analysis for Coupled Structural-Acoustic System with Absorbing Material Using FEM/BEM

Since the acoustic impedance in water cannot be neglected with respect to the mechanical impedance, the acoustic radiation caused by the vibration of structures in the compressible fluid would react to the structure. Therefore, the fluid-structure interaction needs to be considered. The finite element method is used for structure vibration analysis and the boundary element method for acoustic analysis. Sound absorption materials are used to reduce the scattering sound field in the reference region. The sensitivity analysis of a fully coupled structural-acoustic system is proposed. Numerical tests verify the correctness of the proposed algorithm.

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来源期刊

International Journal for Engineering Modelling Engineering-Mechanical Engineering

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： Engineering Modelling is a refereed international journal providing an up-to-date reference for the engineers and researchers engaged in computer aided analysis, design and research in the fields of computational mechanics, numerical methods, software develop-ment and engineering modelling.