Results 21 to 30 of about 3,088,219 (346)

Less Is More: Hollow-Truss Microlattice Metamaterials with Dual Sound Dissipation Mechanisms and Enhanced Broadband Sound Absorption.

open access: yesSmall, 2022
Being a lightweight material with high design freedoms, there are increasing research interests in microlattice metamaterials as sound absorbers. However, thus far, microlattices are limited to one sound dissipation mechanism, and this inhibits their ...
Xinwei Li, Xiang Yu, Wei Zhai
semanticscholar   +1 more source

Sound absorption by clamped poroelastic plates [PDF]

open access: yes, 2008
Measurements and predictions have been made of the absorption coefficient and the surface acoustic impedance of poroelastic plates clamped in a large impedance tube and separated from the rigid termination by an air gap.
Attenborough K.   +4 more
core   +1 more source

Sound absorption performance of micro-perforated plate sandwich structure based on triply periodic minimal surface

open access: yesJournal of Materials Research and Technology, 2023
The sandwich structure based on Triply periodic minimal surface (TPMS) is a lightweight and high-strength multifunctional composite material that combines the versatility of heat exchange, impact resistance, and energy absorption, and has been widely ...
Pengfei Zhang   +8 more
doaj   +1 more source

Multi‐Level Bioinspired Microlattice with Broadband Sound‐Absorption Capabilities and Deformation‐Tolerant Compressive Response

open access: yesAdvanced Functional Materials, 2022
Owing to the omnipresent noise and crash hazards, multifunctional sound‐absorbing, and deformation‐tolerant materials are highly sought‐after for practical engineering design. However, challenges lie with designing such a material. Herein, leveraging the
Xinwei Li   +5 more
semanticscholar   +1 more source

Development of biodegradable composite micro-perforated panel made from natural fibre composites with evaluation of its acoustic and mechanical properties [PDF]

open access: yes, 2020
Micro-perforated panel (MPP) has been widely considered as a promising alternative for sound absorption purposes. Plenty of research has been done to improve the sound absorption of MPP but no specific work highlights the material structure effect ...
Chin, Desmond Daniel Vui Sheng
core  

Sound absorption property of openpore aluminum foams [PDF]

open access: yesChina Foundry, 2007
This paper presents a study on sound absorption property of aluminum foam by evaluating its sound absorption coefficients using standing wave tube method. Experimental results showed that the average values of sound absorption coefficients (over the test
WANG Fang, WANG Lu-cai, WU Jian-guo
doaj  

On-demand optimize design of sound-absorbing porous material based on multi-population genetic algorithm

open access: yese-Polymers, 2020
Porous material (PM) shows good sound absorption performance, however, the sound absorbing property of PM with different parameters are greatly different.
Wang Yonghua   +5 more
doaj   +1 more source

Enhanced Low-Frequency Sound Absorption of a Porous Layer Mosaicked with Perforated Resonator

open access: yesPolymers, 2022
A composite structure composed of a porous-material layer mosaicked with a perforated resonator is proposed to improve the low-frequency sound absorption of the porous layer. This structure is investigated in the form of a porous-material matrix (PM) and
Xin Li, Bilong Liu, Qianqian Wu
semanticscholar   +1 more source

Sound absorption of lightweight brick containing expanded polystyrene beads and palm oil fuel ash [PDF]

open access: yes, 2020
Bricks are considered as important and strongest materials being used over the years. Commonly, bricks are made of clay mineral and usually used in construction of building wall. The purpose of this study is to assess the effectiveness of palm oil fuel
Abdul Hamid, N A   +9 more
core   +1 more source

Study for sound-absorbing materials of biomass tubule (Oblique incident sound-absorption coefficient of oblique arrangement of rice straws)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In this paper, we report the use of sound-absorbing materials, specifically sound-absorbing structures of bundled rice straws, that are oblique arranged incident to the sound waves.
Shuichi SAKAMOTO   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy