Sound absorption performance of honeycomb metamaterials
Furthermore, the advantageous sound absorption properties of microporous plates have led to further enhancements in the acoustic characteristics of honeycomb materials
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Furthermore, the advantageous sound absorption properties of microporous plates have led to further enhancements in the acoustic characteristics of honeycomb materials
15 jan. 2022 The sound absorption performance of micro-perforated plate (MPP) is mainly restricted by four parameters: cavity depth, aperture, plate thickness and
1 jul. 2020 In this study, an adjustable sound absorption frequency honeycomb-MPP (ASAFHM) was designed and manufactured with mechanical regulations, which offers
In this work, a double-layer honeycomb microperforated structure with adjustable back-cavity’s height is designed based on cylinder honeycomb structure and microperforated
panel parameters for achieving the optimal sound absorption performance of the perforated honeycomb panels. One practical outcome of this study is a new type of
1 jul. 2019 Abstract. A combined theoretical and numerical study is carried out to evaluate the sound absorption performance of a micro-perforated sandwich panel with
5 dec. 2022 In particular, MPAF15%, with an intermediate pore size concave micropattern, is optimized for sound absorption performance because it has the highest average
1 nov. 2006 The experimental results show that the honeycomb affects the absorption characteristics of MPPs: the absorption peak increases and shifts to lower frequencies.
DOI: 10.3397/1/37719 Corpus ; Experimental study on sound absorption performance of microporous aluminum square tube space absorber article{Gai2023ExperimentalSO, title={Experimental study on sound absorption performance of microporous aluminum square tube space absorber}, author={Xiao-Ling
Ultra-microporous Sound-absorbing Honeycomb Aluminum. Honeycomb Plate Aluminum Suppliers, Manufacturer offers 372 Honeycomb Plate Aluminum Suppliers, and Honeycomb Plate Aluminum Manufacturers, Distributors, Factories, Companies. There are 232 OEM, 207 ODM, 63 Self Patent. Find
15 okt. 2019 A combined theoretical and numerical study is carried out to evaluate the sound absorption performance of a micro-perforated sandwich panel with perforated honeycomb-corrugation hybrid core (PHCH) at high temperatures up to 700 K. The theoretical model is established based on the classical Maa theory for micro-perforated panels and the method
With the rapid development of modern society, environmental pollution is increasingly serious, among which noise pollution has become the world’s three major. At present, the methods to solve the noise problem are becoming more and more diverse. Among them, the use of porous materials for sound absorption and noise reduction is still one of the most
1 jul. 2023 Therefore, this paper designs and processes different aluminum foam sound absorption structures based on high-speed EDM technology and studies the effect of perforation aperture, perforation depth, and perforation rate on sound absorption peak value and sound absorption coefficient in low and middle-frequency bands
As a result, microporous honeycombs can easily reach the level of medium- and high-density honeycombs. Extra thick cell walls: Taking aluminum honeycomb as an example, the thickness of honeycomb aluminum foil usually does not exceed 0.2mm, and aluminum foils of 0.04mm, 0.06mm, 0.08mm, 0.10mm and 0.15mm are often
Aluminum Honeycomb Core with Microporous Description: Aluminum honeycomb core with microporous is a lightweight and high-strength composite material consisting of a hexagonal honeycomb structure made of thin aluminum sheets bonded to a thin microporous substrate. Structure: Honeycomb Core: The core is composed of an array of
19 mrt. 2018 Metamaterial absorber (MMA) is a composite metamaterial, which usually consists of periodic artificial structures and dielectric substrate. Through transforming the electromagnetic wave energy
