Results 21 to 30 of about 21,617 (259)

Influences of Compression Ratios on Sound Absorption Performance of Porous Nickel–Iron Alloy

open access: yesMetals, 2018
The improvement of sound absorption performance of porous metal is a focus of research in the field of noise reduction. Influences of compression ratios on sound absorption performance of a porous nickel–iron (Ni–Fe) alloy were investigated.
Panfeng Bai   +5 more
doaj   +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

Improved low-frequency sound absorption of porous silicone rubber resonance sheet with periodic cavities

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
Since the development of advanced sound absorption material is highly critical in noise control applications, anechoic coatings, and acoustic metamaterials, both fabrication technology and structure design are significant in the achievement of broadband ...
Longgui Peng   +4 more
doaj   +1 more source

Damping and sound absorption properties of polymer matrix composites: A review

open access: yesPolymer Testing, 2021
This review article provides a comprehensive overview of fiber and nanoparticle reinforced polymer matrix composites (PMC) for their damping and sound absorption properties.
Md Abu Shaid Sujon   +2 more
doaj   +1 more source

Effect of Thickness and Perforation Size on the Acoustic Absorption Performance of a Micro-Perforated Panel [PDF]

open access: yesMATEC Web of Conferences, 2021
In current times, noise pollution is especially apparent in urban areas due to rapid development in transportation, industrialization, and urbanization.
Wong Yi-San   +3 more
doaj   +1 more source

Research on the low-frequency sound absorption characteristics of coiled Helmholtz cavity acoustic metamaterials

open access: yesAdvances in Mechanical Engineering, 2022
A coiled Helmholtz cavity acoustic metamaterial structure, which consists of three perforated plates, two channel layers and an air back cavity, is designed to address the problem of poor absorption of low-frequency band noise by conventional acoustic ...
Hongyu Cui, Zhaoping Hu, Haoming Hu
doaj   +1 more source

Improvement of the sound absorption performance of jute felt-based sound absorbers using micro-perforated panels

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2017
In industrial and architectural applications, noise can be controlled using sound-absorbing materials. Natural materials are now gaining importance in the noise control engineering as they have advantages like low cost, eco-friendly, easy to produce, etc.
Pritesh V Bansod   +2 more
doaj   +1 more source

Sound Absorption of Microperforated Panel Made from Coconut Fiber and Polylactic Acid Composite

open access: yesJournal of Natural Fibers, 2022
This paper highlights the sound absorption performance of microperforated panel (MPP) made from coconut fiber and polylactic acid (PLA) composite named as biocomposite microperforated panel (BMPP).
Desmond Daniel Chin Vui Sheng   +2 more
doaj   +1 more source

Sound absorption performance of helically perforated porous metamaterials at high temperature

open access: yesMaterials & Design, 2023
A high-temperature theoretical model is established to investigate the sound absorption performance of helically perforated porous metamaterials (HPPM) at high temperature. Finite element simulations are carried out to validate the theoretical model, and
Weitao Zhang, Xuewei Liu, Fengxian Xin
doaj   +1 more source

Investigation of Sound Absorption Performance of Roof Panels in Automobiles

open access: yesInternational Journal of Mechanical Engineering, 2022
Vehicle interior noise is a factor that directly affects users' perception of the quality of passenger cars. Research shows that there have been more focus on NVH (Noise, Vibration, Harshness) studies in modern vehicles in recent years. Ceiling tiles are extremely important in controlling vehicle interior noise.
Yahya Isik, Mustafa Tuzla
openaire   +3 more sources

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