STUDY OF THE EFFECTS OF VARIOUS BOUNDARY CONDITIONS ON THE ACOUSTICAL TREATMENTS OF DOUBLE-PANEL STRUCTURES LINED WITH POROELATIC MATERIALS

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SHOJAEEFARD M.H.; TALEBI TOOTI R.; AHMADI R.; AMIRPOUR MOLLA M.

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Journal: JOURNAL OF SIMULATION AND ANALYSIS OF NOVEL TECHNOLOGIES IN MECHANICAL ENGINEERING (JOURNAL OF SOLID MECHANICS IN ENGINEERING) Year:2011 | Volume:3 | Issue:2 Page(s): 1-12

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Title

STUDY OF THE EFFECTS OF VARIOUS BOUNDARY CONDITIONS ON THE ACOUSTICAL TREATMENTS OF DOUBLE-PANEL STRUCTURES LINED WITH POROELATIC MATERIALS

Author(s)

SHOJAEEFARD M.H. | TALEBI TOOTI R. | AHMADI R. | AMIRPOUR MOLLA M. | Issue Writer Certificate

Keywords

DOUBLE-PANEL STRUCTURESQ3

POROELASTIC LAYERQ2

TRANSMISSION LOSSQ2

BOUNDARY CONDITIONQ2

STATISTICAL ENERGY ANALYSIS (SEA)Q2

Abstract

In this paper, the acoustical treatment of DOUBLE-PANEL STRUCTURES lined with poroelatic materials is predicted using analytical method in order to study the effective usage of the various BOUNDARY CONDITIONs of porous layer and to identify the effective parameters on the TRANSMISSION LOSS of the multilayer systems. Therefore, inertia and viscous coupling along with thermal and elastic coupling should be considered in transfer stress dynamic and stress-strain relationships for an elastic porous material based on Biot theory. Then, the governing equations of the wave propagation in an elastic porous material are briefly considered and the general forms for the stresses and displacements within the porous material are given. Applying various BOUNDARY CONDITIONs and solving these equations with Matlab code simultaneously, the TRANSMISSION LOSS of these structures is calculated. The results from the analytical method are compared with the SEA madel and the experimental data with excellent agreement is observed. Finally, the influence of effective parameters of this structure with various BOUNDARY CONDITIONs on the TRANSMISSION LOSS of the multilayer systems is studied. The results have been shown that the TRANSMISSION LOSS of DOUBLE-PANEL STRUCTURES lined with a layer of porous material can depend critically on the method of mounting the porous layer to the facing panel.

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APA: Copy

SHOJAEEFARD, M.H., TALEBI TOOTI, R., AHMADI, R., & AMIRPOUR MOLLA, M.. (2011). STUDY OF THE EFFECTS OF VARIOUS BOUNDARY CONDITIONS ON THE ACOUSTICAL TREATMENTS OF DOUBLE-PANEL STRUCTURES LINED WITH POROELATIC MATERIALS. JOURNAL OF SIMULATION AND ANALYSIS OF NOVEL TECHNOLOGIES IN MECHANICAL ENGINEERING (JOURNAL OF SOLID MECHANICS IN ENGINEERING), 3(2), 1-12. SID. https://sid.ir/paper/171296/en

Vancouver: Copy

SHOJAEEFARD M.H., TALEBI TOOTI R., AHMADI R., AMIRPOUR MOLLA M.. STUDY OF THE EFFECTS OF VARIOUS BOUNDARY CONDITIONS ON THE ACOUSTICAL TREATMENTS OF DOUBLE-PANEL STRUCTURES LINED WITH POROELATIC MATERIALS. JOURNAL OF SIMULATION AND ANALYSIS OF NOVEL TECHNOLOGIES IN MECHANICAL ENGINEERING (JOURNAL OF SOLID MECHANICS IN ENGINEERING)[Internet]. 2011;3(2):1-12. Available from: https://sid.ir/paper/171296/en

IEEE: Copy

M.H. SHOJAEEFARD, R. TALEBI TOOTI, R. AHMADI, and M. AMIRPOUR MOLLA, “STUDY OF THE EFFECTS OF VARIOUS BOUNDARY CONDITIONS ON THE ACOUSTICAL TREATMENTS OF DOUBLE-PANEL STRUCTURES LINED WITH POROELATIC MATERIALS,” JOURNAL OF SIMULATION AND ANALYSIS OF NOVEL TECHNOLOGIES IN MECHANICAL ENGINEERING (JOURNAL OF SOLID MECHANICS IN ENGINEERING), vol. 3, no. 2, pp. 1–12, 2011, [Online]. Available: https://sid.ir/paper/171296/en

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