Results 11 to 20 of about 1,091,983 (300)

Effect of sound insulation by adhesion of laminated sound insulation materials

open access: yesNihon Kikai Gakkai ronbunshu, 2016
This report shows effect of sound insulation by adhesion of porous materials and film laminated panel. It deals a technique for estimating damped vibration of automotive body panels with sound-proof structures.
Yoshio KUROSAWA   +3 more
doaj   +3 more sources

Impact Sound Insulation of Thermally Insulated Balconies

open access: yesINTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2022
AbstractWith the increasing urban densification, balconies are gaining in popularity as they improve the living quality in homes. From a technical point of view, the thermal insulation between balconies and the building’s façade is state of the art. In Germany, the most popular balcony construction is a reinforced concrete balcony, separated from the ...
L HEIDEMANN, J SCHECK, B ZEITLER
openaire   +1 more source

Floquet topological insulators for sound [PDF]

open access: yesNature Communications, 2016
AbstractThe unique conduction properties of condensed matter systems with topological order have recently inspired a quest for the similar effects in classical wave phenomena. Acoustic topological insulators, in particular, hold the promise to revolutionize our ability to control sound, allowing for large isolation in the bulk and broadband one-way ...
Fleury, Romain   +2 more
openaire   +5 more sources

Calculation of Sound Insulation for Hybrid CLT Fabricated with Lumber and LVL and comparison with experimental data. [PDF]

open access: yesMATEC Web of Conferences, 2019
The insulated predictions were carried out for LVL, CLT and HCLT in order to evaluate their sound properties, in which the theoretical value of sound insulation was predicted by regarding the substances in wood cell wall as equivalence to specific medium
Ju Zehui   +6 more
doaj   +1 more source

Low-frequency sound insulation optimisation design of membrane-type acoustic metamaterials based on Kriging surrogate model

open access: yesMaterials & Design, 2023
Low frequency is a difficult problem in noise control. How to design new lightweight materials or structures to achieve low-frequency noise reduction is of utmost importance.
Wang Peng   +4 more
doaj   +1 more source

Underwater broadband sound insulation with chiral spiral structures

open access: yesAIP Advances, 2020
Low-frequency noise has been a long-standing issue in the context of a complex underwater environment. While theory related to low-frequency sound insulation in air has been developed, systematic research on underwater sound insulation has not yet been ...
Huilan Wu, Chengpeng Hao, Han Zhang
doaj   +1 more source

Investigation of Heat and Sound Insulation [PDF]

open access: yes, 2022
How does the heat insulation and sound insulation materials affect each ...
Bilgiç, Damla
core   +1 more source

Material Parameters Acquisition and Sound Insulation Performance analysis of Membrane-type Acoustic Metamaterials Applied for Transformer [PDF]

open access: yesE3S Web of Conferences, 2019
As a light-weight and ultra-thin artificial material, acoustic metamaterial have more different attributes than natural material. The study of sound insulation for acoustic metamaterial is hot, and the membrane-type acoustic metamaterials supplement the ...
Yuchao Ma   +4 more
doaj   +1 more source

Average Energy Transfer Characteristics and Control Strategy of Active Feedback Sound Insulation for Water-Filled Acoustic System Based on Double-Layer Plate Structure

open access: yesApplied Sciences, 2022
The double-layer plate structure in passive sound insulation systems can improve the high-frequency sound insulation performance, but it is still not ideal in the low-frequency region.
Likang Wang   +4 more
doaj   +1 more source

Studies on the Effect of Hybridization on Sound Insulation of Coir-banana-polypropylene Hybrid Biocomposites

open access: yesJournal of Natural Fibers, 2022
Natural fiber-based hybrid composites have been explored in this study as possible structural materials. Detailed investigation of sound insulation property of a series of hybrid and nonhybrid composites has been carried out using impedance tube having ...
Vikas Kumar Singh, Samrat Mukhopadhyay
doaj   +1 more source

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