Results 11 to 20 of about 205,968 (297)
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
doaj +1 more source
Acoustic performances of silicone foams for sound absorption [PDF]
Journal of Cellular Plastics, 2017 The aim of this study is to investigate the link between the elaboration process, the microstructure and the acoustic behaviour of silicone foams obtained using a two-component silicone. Different parameters such as the ratio of components, the addition of a thinning agent and the curing temperature are varied, with the objective of understanding the ...
Ahmed Abbad +3 more
openaire +1 more source
Research on Low-Frequency Noise Control Based on Fractal Coiled Acoustic Metamaterials
Shock and Vibration, 2022 In this paper, a self-similar fractal coiled acoustic metamaterial is designed for the low-frequency noise control problem by combining a perforated plate and a coiled back cavity structure.
Hongyu Cui, Chengtao Liu, Haoming Hu
doaj +1 more source
Variability and Performance Study of the Sound Absorption of Used Cigarette Butts [PDF]
Materials, 2019 There has been increasing interest in new sustainable materials that can be used as construction materials. Among them, sound-absorbing materials have an important role in both acoustical room conditioning and in room insulation. As a proposal for recycling, one of the most common residues in the world, cigarette butts, is studied.
Gómez Escobar, Valentín +2 more
openaire +3 more sources
Investigation of Sound Absorption Performance of Roof Panels in Automobiles
International 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
e-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
Materials & Design, 2023 Crowded living conditions and increasingly severe noise problems necessitate the development of a low-thickness sound absorption material with remarkable sound absorption performance.
Lize Qi +11 more
doaj +1 more source
Study on Sound Absorption Performance of Aluminum Foam Combination
Journal of Physics: Conference Series, 2023 Abstract Aluminum foam is a kind of new material with a large number of holes distributed in aluminum alloy. It has the characteristics of lightweight, sound absorption, energy absorption and vibration reduction, and other porous materials. Aluminum foam has good acoustic performance.
Tairu Jiang +3 more
openaire +1 more source
Low-frequency sound absorption performance of composite acoustic metamaterials with rotational labyrinth channels and micro-perforated panels [PDF]
AIP AdvancesIn this paper, a kind of novel acoustic metamaterial combined with a rotational labyrinth and a micro-perforated plate is designed. The design of the rotational labyrinth structure combined with micro-perforated plates endows the acoustic metamaterial ...
Xinxin Liu +4 more
doaj +1 more source
Journal of Low Frequency Noise, Vibration and Active Control, 2023 Underwater sound absorption materials with a stable performance at various hydrostatic pressures are important for marine applications. However, most studies about underwater sound absorption materials only focused on the performance at atmospheric ...
Yifeng Fu, Huming Wang, Pan Cao
doaj +1 more source