Acoustic characterization of ducts lined with poroelastic materials based on wave finite element method

Jiang, Changyong; Wang, Chunqi; Huang, Lixi

doi:10.1016/j.apacoust.2018.10.030

Cited by 13 publications

(3 citation statements)

References 28 publications

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“…Another lever is to take advantage of poroelastic frame elastic resonances. Their strong impact on the sound attenuation have been shown in [29][30][31] in the poroelastic silencer.…”

Section: Introductionmentioning

confidence: 98%

Poroelastic lamellar metamaterial for sound attenuation in a rectangular duct

Nennig

Perrey‐Debain

et al. 2021

Applied Acoustics

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The sound attenuation of a silencer consisting of a lamella network made with melamine foam inserted in rectangular duct is investigated numerically and experimentally. The lamella arrangement is designed so that skeleton bending elastic resonances appear at low frequency. In addition to this phenomenon, viscothermal losses in the porous material ensure broadband attenuation. The lamella network provides a natural sub-wavelength resonator, without any other kind of inclusions, and create an easy to manufacture metamaterial with high tunability and broadband efficiency. Experimental transmission losses compare well with three dimensional finite element model obtained either on the whole silencer, either on a periodic cell. A parametric study is conducted on the periodic model to identify the effect of different geometrical parameters, like dimensions of the lamella and air gap, as well as physical parameters, like air flow resistivity, elastic modulus and loss factor of the poroelastic material, on the sound attenuation in the silencer.

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“…Another lever is to take advantage of poroelastic frame elastic resonances. Their strong impact on the sound attenuation have been shown in [29][30][31] in the poroelastic silencer.…”

Section: Introductionmentioning

confidence: 98%

Poroelastic lamellar metamaterial for sound attenuation in a rectangular duct

Nennig

Perrey‐Debain

et al. 2021

Applied Acoustics

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“…There are various types of passive and active noise suppression approaches for a long duct with a high aspect ratio. Porous materials have been widely used to line the duct wall and absorb noise in central air conditioning and ventilation systems [1,2]. But the hygiene issue due to the accumulation of dust inside the porous materials has received more and more attentions; and the performance of duct lining is usually poor without sufficient length.…”

Section: Introductionmentioning

confidence: 99%

Noise control for a dipole sound source using micro-perforated panel housing integrated with a Herschel–Quincke tube

et al. 2019

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“…Matuszyk and Demkowicz (2014) studied the solution of coupled poroelastic/acoustic/elastic wave propagation problems using automatic hp-adaptively. Jiang et al (2019) investigated the acoustic properties of a circular duct lined with poroelastic materials based on the wave/finite element method. Several hypotheses of this type of context have been made and attempted by many practitioners and researchers (Mahmoud et al , 2015; Zienkiewicz and Shiomi, 1984; Attenborough, 1982; Sharma and Garg, 2006; Sharma and Gogna, 1991; Singh et al , 2017; Sharma, 2004; Yadav et al , 2018; Pelker and Saha, 1983).…”

Section: Introductionmentioning

confidence: 99%

Effect of rotation on wave propagation through a poroelastic wet bone with cavity

Abd-Alla

Abo‐Dahab

Ateeq

et al. 2019

MMMS

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Purpose The purpose of this paper is to investigate the wave propagation of wave in an infinite poroelastic cylindrical bone. The dynamic behavior of a wet long bone that has been modeled as a piezoelectric hollow cylinder of crystal class 6 is investigated. Design/methodology/approach An exact closed form solution is presented by employing an analytical procedure. The frequency equation for poroelastic bone is obtained when the boundaries are stress free and is examined numerically. Findings The study of wave propagation over a continuous medium is of practical importance in the field of engineering, medicine and bio-engineering. Application of the poroelastic materials in medicinal fields such as orthopedics, dental and cardiovascular is well known. In orthopedics, wave propagation over bone is used in monitoring the rate of fracture healing. There are two types of osseous tissue, such as cancellous or trabecular and compact or cortical bone, which are of different materials, with respect to their mechanical behavior. Originality/value The frequencies are calculated for poroelastic bone for various values for different values of rotation, angular velocity and density. In wet bone little velocity dispersion was observed, in contrast to the results of earlier studies on wet bone. Large values of attenuation were observed. Such a model would in particular be useful in large-scale parametric studies of bone mechanical response.

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Acoustic characterization of ducts lined with poroelastic materials based on wave finite element method

Cited by 13 publications

References 28 publications

Poroelastic lamellar metamaterial for sound attenuation in a rectangular duct

Poroelastic lamellar metamaterial for sound attenuation in a rectangular duct

Noise control for a dipole sound source using micro-perforated panel housing integrated with a Herschel–Quincke tube

Effect of rotation on wave propagation through a poroelastic wet bone with cavity

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