2007
DOI: 10.1177/0021955x07075508
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Optimal Design of Corrugated Cellular Plastic Foam with Semi-elliptical Shaped Upper Surface by Finite Element Frequency Domain Acoustic Analysis

Abstract: A general way to enhance the sound absorption capability of cellular plastic foam is the use of corrugated foam. The corrugated surface can greatly enhance the sound absorption of the foam in the mid and high frequency ranges. In this study, a finite element frequency domain acoustic analysis is used for the analysis. Such a numerical method is more efficient than the methods used in earlier studies as it saves the calculation time on the elements of the incident acoustic field. During the optimal design of th… Show more

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Cited by 3 publications
(3 citation statements)
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“…In the previous studies, 812 the Galerkin finite element method with triangular poroelastic elements was applied to obtain acoustical property results of foams in Laplace domain. Figure 3 shows a triangular poroelastic element of a foam experiencing plane strain.…”
Section: Fefdaamentioning
confidence: 99%
See 1 more Smart Citation
“…In the previous studies, 812 the Galerkin finite element method with triangular poroelastic elements was applied to obtain acoustical property results of foams in Laplace domain. Figure 3 shows a triangular poroelastic element of a foam experiencing plane strain.…”
Section: Fefdaamentioning
confidence: 99%
“…10 Based on the finite element frequency domain acoustical analysis (FEFDAA) the acoustical properties of planar, corrugated, and pyramidal foams were analyzed. 8,1012…”
Section: Introductionmentioning
confidence: 99%
“…This design has been incorporated into various applications that are related to energy-absorption due to its high strength-to-weight ratio. 21 An example is a corrugated core in sandwich panels used in aerospace and construction industries where mechanical properties and weight-saving are essential. 22,23 Another distinctive feature of the corrugated structure is the airspaces between the ridges and furrows provide air circulation and prevent humidity retention.…”
Section: Introductionmentioning
confidence: 99%