Results 1 to 10 of about 21,617 (259)
Sound absorption performance of a conch-imitating cavity structure. [PDF]
Sci Prog, 2022 At present, in order to solve noise pollution, many experts are studying methods to improve the noise reduction performance of sound barriers and acoustic devices. However，the development of sound-absorbing structures under external noise environments with multiple frequencies has not made significant progress.To improve the sound absorption ...
Xie S, Yang S, Yan H, Li Z.
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Sound Absorption Performance of the Poplar Seed Fiber/PCL Composite Materials. [PDF]
Materials (Basel), 2020 Composite materials were prepared by the hot pressing method using poplar seed fibers and polycaprolactone (PCL) as the raw materials to solve the problems related to the recycling of waste fibers. The effects of mass fraction of poplar seed fibers, the volume density, and thickness on the sound absorption performance of the resulting composite ...
Liu Y, Lyu L, Guo J, Wang Y.
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Sound Absorption Performance of Sugar Palm Trunk Fibers [PDF]
E3S Web of Conferences, 2019 The purpose of this research is to investigate the effect of bulk density, thickness, and air gap to sound absorption performance on absorber based sugar palm trunk fibers.
Endar Prabowo Anditya +3 more
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Experimental and mathematical survey of sound absorption performance of date palm fibers. [PDF]
Heliyon, 2019 The present study examines the acoustic behavior sample composites made of date palm natural fibers and polyvinyl alcohol. It also provides the comparison between the sound absorption coefficients obtained from the experimental tests and the ones predicted by the mathematical models.
Taban E +4 more
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The Sound Absorption Performance of Laser-Sintered Composite Biomimetic Wood Porous Structures. [PDF]
Polymers (Basel)This study investigates the development of biomimetic sound-absorbing components through laser sintering technology, drawing inspiration from wood’s natural porous structure. Using a pine wood powder/phenolic resin composite, various specimens were fabricated with different structural configurations (solid, fully porous, and varying straight-pore ...
Zou L, Zhang A, Liu Z, Du P, Guo Y.
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Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption Performance [PDF]
Shock and Vibration, 2021 In this work, a double-layer honeycomb microperforated structure with adjustable back-cavity’s height is designed based on cylinder honeycomb structure and microperforated panel (MPP).
Shanlin Yan +4 more
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Comprehensive evaluation of sound absorption performance in porous concrete pavement with crushed stone base course [PDF]
Scientific ReportsThis study comprehensively evaluates the sound absorption performance of porous concrete pavements with crushed stone base layers of varying thicknesses and particle sizes.
Yi Zhang +4 more
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Sound absorption performance of nonwoven fabrics
Journal of Physics: Conference Series, 2021 Abstract Nowadays, the demand of sustainable and eco- friendly absorber is increasing. Non-woven fabrics made of textile waste can be a good candidate to address such a demand. From measurement results, absorption capability of this kind of material is evident.
I Prasetiyo, null Gunawan, D R Adhika
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Development of Folded Expanded Metal Mesh with Sound Absorption Performance [PDF]
Applied Sciences, 2021 Reverberation time (RT) is an important factor affecting the quality of indoor acoustics. Using sound-absorbing materials is one method for quickly and effectively controlling RT, and installation in the ceiling is a common location. Sound-absorbing ceilings come in many forms, with light steel joist ceilings commonly used in office spaces, classrooms,
Jui-Yen Lin +2 more
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Zhongguo Jianchuan Yanjiu, 2022 ObjectivesAn underwater anechoic coating layer laid on the hull surface of a submarine is squeezed under the action of high hydrostatic pressure, changing its shape and material parameters, which has a great impact on sound absorption performance ...
Wenkai DONG, Meixia CHEN
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