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Communication Dans Un Congrès Année : 2014

Recent Highlights on the Parallel Transfer Matrix Method (PTMM)

Résumé

Recently, an extension of the transfer matrix method (TMM) to calculate absorption coefficient and transmission loss of acoustic systems in parallel (one next to each other and not one after the other) has been published [1]. This method (P-TMM) is based on the continuity of flow and pressure on each side of the stack. To comply with these constraints, assumptions must be set: there is only plane waves that propagate, no exchange is allowed between the elements of the stack, the stack is smaller than the wavelength. Further progress has been made. Firstly, a comparison with the method of the sum of admittances (ASM) [2] will be presented. Then, a further extension of the P-TMM will be introduced for stacks where each component is not isolated from each other : discretized P-TMM. the diffusion effect is taken into account in the P-TMM approach.
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Dates et versions

hal-02734397 , version 1 (29-09-2020)

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  • HAL Id : hal-02734397 , version 1

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Kévin Verdière, Raymond Panneton, Said Elkoun, Thomas Dupont, Philippe Leclaire. Recent Highlights on the Parallel Transfer Matrix Method (PTMM). Symposium on the Acoustics of Poro-Elastic Materials 2014, Dec 2014, Stockholm, Sweden. ⟨hal-02734397⟩
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