Results 11 to 20 of about 2,485,601 (152)
Acoustic absorption of passive destructive interference cavities
Materials Today Communications, 2019 Acoustic products are primarily designed for broadband acoustic absorption. However, frequency-dependent acoustic absorption featuring passive design-based solutions are necessary to combat the growing noise pollution.
Arun Arjunan
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Low and medium frequency acoustic absorption properties of acoustic metamaterials with irregular cylindrical cavities [PDF]
Scientific ReportsThe automotive industry is moving towards low noise and lightweight, and acoustic metamaterials can play a vital role. This paper presents a new acoustic metamaterial consisting of cylindrical holes of different depths arranged circumferentially and ...
Zhenhua Hou +5 more
doaj +2 more sources
AUTEX Research Journal, 2018 Noise is frequently unnoticed, but it is one of the causes of unhealth for human beings reducing people’s quality of life. There are many materials that can be considered as acoustic absorbents.
Segura-Alcaraz Pilar +3 more
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Research on sound absorption performance and optimal design of acoustic materials containing cavity structure [PDF]
MATEC Web of Conferences, 2021 Based on the finite element method, this paper first discusses the sound absorption characteristics of acoustic materials with a cavity structure backed by air, and then takes the internal cavity of the acoustic material and the acoustic material as the ...
Song Hao, Cui Zixian, Li Jun, An Buchao
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Shock and Vibration, 2021 Viscoelastic material acoustic coating plays an important role in noise and vibration control of underwater equipment. The dynamic mechanical properties of the viscoelastic material have a direct effect on the sound absorption performance of the acoustic
Zhuhui Luo +3 more
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Concentration measurement of carbon dioxide based on ultrasonic principle
Measurement: Sensors, 2021 Acoustic detection technology has the advantages of low cost, short detection period, online detection and low power consumption. However, the complex circuits and procedures are needed to measure the acoustic absorption while using the conventional ...
Weiguo Zhao, Wenhao Lou, Yunkai Xu
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Journal of Physics, Conference Series, 2021 In recent times, Additive Manufacturing (AM) has been applied rapidly in almost all fields. This study was conducted to apply the additive manufacturing into an acoustic application by 3D printing the Micro-Perforated Panels (MPP) through Fused ...
V. Sekar +6 more
semanticscholar +1 more source
Journal of Marine Science and Engineering, 2023 The acoustic absorption characteristics of anechoic coatings attached to the surface of underwater vehicles are closely related to their acoustic stealth.
Kangkang Shi +4 more
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Results of experimental research of acoustic characteristics of acoustic liners for turbofan engines
Авіаційно-космічна техніка та технологія, 2023 The subject of the research in this article is an acoustic liner designed to reduce aircraft noise in a wide frequency range. The purpose of the study is to determine the acoustic characteristics of an acoustic liner.
Yevhen Rymarenko
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Agronomy, 2022 The aim of this study was to determine the acoustic and thermal properties of particleboards made from mulberry wood pruning waste using urea formaldehyde resin (UF) as a binder. The investigation focused on the evaluation of the thermal conductivity and
Manuel Ferrandez-Villena +3 more
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