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Type: Artigo de periódico
Title: Coupled plate energy models at mid- and high-frequency vibrations
Author: Pereira, VS
Dos Santos, JMC
Abstract: At mid- and high-frequency bands, displacement-based approaches such as the finite element method (FEM) create too large models, while energy-based methods, such as statistical energy analysis, produce smaller ones, but without spatial variation. Energy flow analysis (EFA) can produce compact models that include spatial variation; however, their analytical solution makes them difficult to handle for built-up structures. To overcome this issue, the energy finite element method (EFEM), a finite element solution of EFA, was proposed. A more accurate alternative to EFEM is the energy spectral element method (ESEM). It is a matrix methodology applied to EFA similar in style to FEM, with one significant difference being the use of the analytical solution as interpolation functions. Simulated results obtained by EFEM and ESEM are analysed and compared with each other and with the spectral element method, which is used as a reference. (C) 2013 Elsevier Ltd. All rights reserved.
Subject: Energy flow analysis
Energy finite element method
Energy spectral element method
Spectral element method
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Citation: Computers & Structures. Pergamon-elsevier Science Ltd, v. 134, n. 48, n. 61, 2014.
Rights: fechado
Identifier DOI: 10.1016/j.compstruc.2013.11.006
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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