Results 41 to 50 of about 2,523,561 (213)
Zhongguo Jianchuan Yanjiu, 2023 ObjectiveThis paper aims to study the characteristics and calculation method of the vibration and sound radiation of single ring-stiffened cylindrical shells with porous fiber composite materials installed in the inner wall under acoustic excitation ...
Xinmei YANG +3 more
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Applied SciencesPowders that absorb sound by longitudinal vibration have either a gentle or sharp sound absorption curve at the first absorption peak frequency. Experiments were performed to investigate the conditions under which longitudinal vibration occurs in powders
Shuichi Sakamoto +4 more
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Results in Physics, 2019 Although the conventional locally resonant acoustic metamaterials (LRAMs) have shown better sound absorption performance in the low frequency band, the effective frequency range of the sound absorption performance is quite narrow relatively.
Kangkang Shi +4 more
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Sound Absorption Properties of Natural Fibers: A Review
Sustainability, 2020 In recent years, in an attempt to substitute the conventional synthetic sound absorption material, natural fibers and their sound absorption properties have been increasingly studied.
Tao Yang +6 more
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Advances in Mechanical Engineering, 2015 Porous metal materials are widely used in noise control with high sound pressure applications such as aircraft engine liners and combustion chambers for rocket engines due to their excellent performance of sound absorption characteristics and ...
Xiaopeng Wang +3 more
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水下无人系统学报The radiation noise of mechanical noise has a significant impact on the acoustic detection performance of acoustic detection-based underwater gliders. In order to address this problem, this paper introduced sound absorption structure into the study of ...
Donghai ZENG +5 more
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Novel sound absorption materials produced from air laid non-woven feather fibres
Heliyon, 2018 This research has investigated the use of feather fibres to produce sound absorption materials as an alternative to the oil derived synthetic plastics that currently dominate the sound absorption materials market.
Elena Dieckmann +3 more
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Journal 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
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Investigation of Sound Absorption Properties of Hybrid Multilayer Density Gradient Coir Structure [PDF]
, 2021 Vaishnavi Muralidharan, G. Thilagavathi
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Fiber Weight Fraction Effect to Acoustic Properties of RHDPE Cantula Composite
Mekanika, 2017 In this study, composites made from recycled HDPE and Cantula fiber have been done and the absorption coefficient have been measured. Composites rHDPE-Cantula were made using hot press for approximately 60 minutes with 170oC temperature while pressure ...
Muhammad Taufik Burhany Hendrowarsito +2 more
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