负泊松比磁芯加劲磁电弹性夹层板的声传输

IF 5.7 1区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

International Journal of Engineering Science Pub Date : 2025-08-20 DOI:10.1016/j.ijengsci.2025.104372

Y.S. Li , B.L. Liu , S. Li

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引用次数: 0

摘要

本文研究了带负泊松比（NPR）芯的加劲磁电弹性（MEE）夹层板的自由振动和传声损失。首先，设计了一种新型的三维NPR结构，并通过人工神经网络对NPR结构的有效材料性能进行了标定。其次，利用Hamilton原理推导了上述含NPR核的MEE夹层板的运动方程，得到了简支边界条件下自由振动的解析解。推导出谐波入射下的声传输损耗（STL）公式。最后，通过数值算例分析了核芯的材料性能和MEE加筋夹层板的STL性能。本研究阐明了智能NPR结构独特的力学性能，并建立了多场耦合对此类轻量化自适应系统隔声性能影响的评估方法。

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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Sound transmission through stiffened magnetoelectroelastic sandwich plates with negative Poisson’s ratio core

This study investigates free vibration and sound transmission loss of stiffened magnetoelectroelastic (MEE) sandwich plates incorporating negative Poisson's ratio (NPR) cores. Firstly, a novel three-dimensional NPR structure is designed, and the effective material properties of the NPR structure are calibrated via an artificial neural network. Secondly, the equations of motion for stiffened MEE sandwich plates incorporating NPR cores mentioned above are derived using Hamilton's principle, yielding analytical solutions for free vibration under simply supported boundary conditions. Sound transmission loss (STL) under harmonic acoustic wave incidence is subsequently formulated. Finally, numerical case studies analyze the material properties of NPR cores and STL performance of stiffened MEE sandwich plates. This study elucidates the unique mechanical properties of intelligent NPR structures and establishes evaluation methodologies for multifield coupling effects on the acoustic insulation performance of such lightweight adaptive systems.

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来源期刊

International Journal of Engineering Science 工程技术-工程：综合

CiteScore

11.80

自引率

16.70%

发文量

审稿时长

45 days

期刊介绍： The International Journal of Engineering Science is not limited to a specific aspect of science and engineering but is instead devoted to a wide range of subfields in the engineering sciences. While it encourages a broad spectrum of contribution in the engineering sciences, its core interest lies in issues concerning material modeling and response. Articles of interdisciplinary nature are particularly welcome. The primary goal of the new editors is to maintain high quality of publications. There will be a commitment to expediting the time taken for the publication of the papers. The articles that are sent for reviews will have names of the authors deleted with a view towards enhancing the objectivity and fairness of the review process. Articles that are devoted to the purely mathematical aspects without a discussion of the physical implications of the results or the consideration of specific examples are discouraged. Articles concerning material science should not be limited merely to a description and recording of observations but should contain theoretical or quantitative discussion of the results.