Energy radiation transfer model of sandwich coupled plate

被引：0
|
作者：
Dai C. [1 ]
Zhong Q. [1 ]
Huang J.A. [1 ]
Wang S. [1 ]
Chen H. [1 ]
机构：
[1] CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2023年 / 42卷 / 09期
关键词：
energy density; energy transfer coefficient; power flow; radiative energy transfer method ( RETM); sandwich plate;
D O I：
10.13465/j.cnki.jvs.2023.09.010
中图分类号：
学科分类号：
摘要：
Here, the radiative energy transfer method ( RETM) was extended to sandwich coupled plate model. The vibration governing equation of sandwich plate was derived，and the wave propagation characteristic parameters of the structure were obtained. Based on the wave theory, the energy transfer coefficient of sandwich coupled plate was derived. According to the energy density control equation, kernel functions of energy density and power flow intensity were obtained. According to Huygens principle, energy inside structure could be obtained by superposition of the direct field energy of real source radiation and the reflected field energy of boundary virtual source. The intensity of boundary virtual source was obtained by solving the second kind of Fredholm integral equation. The numerical example results obtained using this model were compared with those obtained using modal superposition and power flow analysis (PFA) to verify the correctness and accuracy of the established model. The energy density and power flow distribution characteristics of L-type sandwich coupled plate were obtained by solving this problem. © 2023 Chinese Vibration Engineering Society. All rights reserved.
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页码：86 / 94and144
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