Analysis of vibro-acoustic characteristics of functionally graded sandwich microplates under thermal-electric effects

IF 2.4 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Intelligent Material Systems and Structures Pub Date : 2024-03-04 DOI:10.1177/1045389x241231322
Feng-Lian Li, Shi-Jie Fan, Yu-Qi Hao, Mei Lv
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Abstract

Based on the hyperbolic tangent parabola mixed shear deformation theory, the paper studied the sound radiation and the sound insulation of the functionally graded (FG) sandwich microplates under thermal-electric effects. The sandwich plate is composed of piezoelectric skin layers and FGM core layer. By using Hamilton’s principle, a size-dependent model considering the thermal-piezoelectric effects are established. The acoustic response and sound insulation are calculated with Rayleigh integral and solid-fluid coupling conditions. The accuracy of the presented method is verified by the numerical simulations. Then the effects of various parameters on the vibro-acoustic characteristics are analyzed and discussed. Numerical results show that the temperature variations, the length scale parameter to thickness ratio and the gradient index have great impacts on the FG sandwich microplates.
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热电效应下功能分级夹层微板的振动声学特性分析
本文基于双曲切抛物线混合剪切变形理论,研究了热电效应下功能分级(FG)夹层微板的声辐射和隔声性能。夹层微板由压电表层和 FGM 核心层组成。利用汉密尔顿原理,建立了考虑热-压电效应的尺寸相关模型。利用瑞利积分和固-流耦合条件计算了声学响应和隔声量。数值模拟验证了所提出方法的准确性。然后分析和讨论了各种参数对振动声学特性的影响。数值结果表明,温度变化、长度尺度参数与厚度比和梯度指数对 FG 夹层微板有很大影响。
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来源期刊
Journal of Intelligent Material Systems and Structures
Journal of Intelligent Material Systems and Structures 工程技术-材料科学:综合
CiteScore
5.40
自引率
11.10%
发文量
126
审稿时长
4.7 months
期刊介绍: The Journal of Intelligent Materials Systems and Structures is an international peer-reviewed journal that publishes the highest quality original research reporting the results of experimental or theoretical work on any aspect of intelligent materials systems and/or structures research also called smart structure, smart materials, active materials, adaptive structures and adaptive materials.
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