Sound absorbing characteristics of fibrous metal materials at high temperatures

Sun, Fugui; Chen, Hualing; Wu, Jiu Hui; Feng, Kai

doi:10.1016/j.apacoust.2009.09.001

Cited by 69 publications

(31 citation statements)

References 18 publications

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“…Compared with mineral wool, wood fiber board and polymer foam, the metal fiber porous material shows a great potential in the properties of sound absorption, high strength, high temperature resistance, anticorrosion, air impact resistance, weather resistance and designable structure [3]. The metal fiber porous material is becoming irreplaceable for noise-control in harsh environments.…”

Section: Progress Of Application Researches Of Sound Absorptionmentioning

confidence: 99%

Progress of Application Researches of Porous Fiber Metals

et al. 2011

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Metal fiber porous materials with intrinsic properties of metal and functional properties of porous materials have received a great deal of attention in the fundamental research and industry applications. With developments of the preparation technologies and industrial requirements, porous fiber metals with excellent properties are developed and applied in many industry areas, e.g., sound absorption, heat transfer, energy absorption and lightweight structures. The applied research progress of the metal fiber porous materials in such application areas based on the recent work in our group was reviewed in this paper.

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Section: Progress Of Application Researches Of Sound Absorptionmentioning

confidence: 99%

Progress of Application Researches of Porous Fiber Metals

et al. 2011

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“…The generation of the silica nanowire entangled arrays are grown, and not created via a mechanical means and they often appear as entangled [4,5]. Entangled structures are also used by the space industry to isolate instruments or to damp vibrations [6,7].…”

Section: Introductionmentioning

confidence: 99%

Entangled structures as high cycle compression springs

Rojas

Slocum

2015

Precision Engineering

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“…It has been shown that when we use a heating belt, it is possible to maintain an approximately linear temperature tube for all tube in temperatures up to 500°C. The acoustic properties can then be found after measuring two different surface impedances [7]. The data measured by Paul T [4] Are rock and basalt wool and fibreglass, for temperatures from 20° C to 500° C. The results show that, to forecast the acoustical characteristics of a porous materials at high temperature, it is sufficient to determine these characteristics at room temperature and then adjust the temperature correction, which is appropriate for the properties of the air flow resistance of the material during the use of Bazley Delany Forms [8].…”

Section: Introductionmentioning

confidence: 99%

Experimental Sound Absorption of Several Loose Uncooked Granular Materials

BOUBEL*,

BOUSSHINE,

GAROUM

et al. 2019

IJITEE

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Absorbent materials it's an acoustic solution that can be used to control the reverberation time (RT) in deferent spaces as: conference rooms, in halls, theaters, cinema.... and also, it can be used in walls or ceilings of buildings to improve the acoustic insulation Which can be used for internal separations between spaces. This study focuses on the experimental study of the acoustic absorption coefficient of several granular food materials as a function of frequency 50 to 1600 Hz. All acoustic absorption tests performed in this study are performed by an acoustic impedance tube or Kundt tube. And to the knowledge of the author it is the first time in the literature that someone studies the acoustic behavior of this kind of materials. Several parameters were studied such as the effect of thickness on the sound absorption coefficient of the materials tested, like the influence of the grain form on the acoustic absorption by the introduction of a new parameter L / D, and finally the influence of density and type of material on the sound absorption coefficient. The objective of this work is to study the influence of the grain shape on the sound absorption coefficient, and that's why we have chosen these fifteen materials each one with its own shape. The results of these experimental tests show that when the sample thickness rises, the acoustic absorption coefficient rises too with a shift from resonance frequency to low frequencies. When the L/D parameter rises, the absorption behavior increases too in all frequencies mentioned. Finally, as the density of the tested material rises, the percentage of sound absorption of the materials also rises

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Sound absorbing characteristics of fibrous metal materials at high temperatures

Cited by 69 publications

References 18 publications

Progress of Application Researches of Porous Fiber Metals

Progress of Application Researches of Porous Fiber Metals

Entangled structures as high cycle compression springs

Experimental Sound Absorption of Several Loose Uncooked Granular Materials

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