Continuous element method for aeroacoustics’ waves in confined ducts

Mohamed A. Khadimallah; Imene Harbaoui; Jean B. Casimir; Lamjed H. Taieb; Muzamal Hussain; Abdelouahed Tounsi

doi:10.12989/anr.2022.13.4.341

Continuous element method for aeroacoustics’ waves in confined ducts

Mohamed A. Khadimallah, Imene Harbaoui, Jean B. Casimir, Lamjed H. Taieb, Muzamal Hussain, Abdelouahed Tounsi

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The continuous elements method, also known as the dynamic stiffness method, is effective for solving structural dynamics problems, especially over a large frequency range. Before applying this method to fluid-structure interactions, it is advisable to check its validity for pure acoustics, without considering the different coupling parameters. This paper describes a procedure for taking wave propagation into account in the formulation of a Dynamic Stiffness Matrix. The procedure is presented in the context of the harmonic response of acoustic pressure. This development was validated by comparing the harmonic response calculations performed using the continuous element model with the analytical solution.

Original language	English
Pages (from-to)	341-350
Number of pages	10
Journal	Advances in Nano Research
Volume	13
Issue number	4
DOIs	https://doi.org/10.12989/anr.2022.13.4.341
State	Published - Oct 2022

Keywords

Acoustic
Continuous element
Dynamic stiffness
Flow
Wave propagation

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abstract = "The continuous elements method, also known as the dynamic stiffness method, is effective for solving structural dynamics problems, especially over a large frequency range. Before applying this method to fluid-structure interactions, it is advisable to check its validity for pure acoustics, without considering the different coupling parameters. This paper describes a procedure for taking wave propagation into account in the formulation of a Dynamic Stiffness Matrix. The procedure is presented in the context of the harmonic response of acoustic pressure. This development was validated by comparing the harmonic response calculations performed using the continuous element model with the analytical solution.",

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AU - Khadimallah, Mohamed A.

AU - Harbaoui, Imene

AU - Casimir, Jean B.

AU - Taieb, Lamjed H.

AU - Hussain, Muzamal

AU - Tounsi, Abdelouahed

PY - 2022/10

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AB - The continuous elements method, also known as the dynamic stiffness method, is effective for solving structural dynamics problems, especially over a large frequency range. Before applying this method to fluid-structure interactions, it is advisable to check its validity for pure acoustics, without considering the different coupling parameters. This paper describes a procedure for taking wave propagation into account in the formulation of a Dynamic Stiffness Matrix. The procedure is presented in the context of the harmonic response of acoustic pressure. This development was validated by comparing the harmonic response calculations performed using the continuous element model with the analytical solution.

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KW - Continuous element

KW - Dynamic stiffness

KW - Flow

KW - Wave propagation

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JO - Advances in Nano Research

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Continuous element method for aeroacoustics’ waves in confined ducts

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