漏2016 World Scientific Publishing CompanyMembrane-type acoustic metamaterials (MAMs) with negative dynamic mass have demonstrated the effects in the sound transmission loss (STL) at low-frequency range. This research aims to design a membrane-type acoustic metamaterial muffler (MAMM) based on the ...
Among the various types of acoustic metamaterials, membrane-type acoustic metamaterials (MAM) possess excellent abilities in controlling sound waves, particularly in the field of sound insulation [52–65], despite their extremely thin, lightweight, and structurally simple design. The soundproofing ...
It is well known that membrane-type acoustic metamaterials consist of a membrane, an additional block and a frame structure. When subjected to the action of incident sound waves, the membrane and block produce resonance and anti-resonance phenomena, resulting in a good sound insulation effect in ...
Finite element method simulations were used to study the acoustic properties of the fabricated metamaterials. An equivalent electrical circuit was built using an electro-acoustic analogy to evaluate the sound absorption coefficient. The unique design of this meta-structure possesses two resonant frequencies...
Actively tunable transverse waves in soft membrane-type acoustic metamaterials Membrane-type metamaterials have shown a fantastic capacity for manipulating acoustic waves in the low frequency range. They have the advantages of simple geometry, light weight, and active tunability. In general, these membran...
This paper proposed a type of lightweight multilayer honeycomb membrane-type acoustic metamaterials (AMs) and the transmission loss is studied experimentally. It is demonstrated that lightweight honeycomb sandwich panel AMs can break the mass law and obtain the great sound transmission loss at a light...
Acoustics metamaterialsMembrane-type acoustic metamaterialCorkRegression treeMachine learningKundt’s tubeSound absorptionTo contain the environmental impact of modern buildings it is necessary to design in a sustainable way, making efficient use of energy resources and raw materials. The reduction of waste...
Acoustic metamaterialsSound transmissionAsymmetric massesEffective massThis study presents a novel membrane-type acoustic metamaterial (MAM) with loaded masses of asymmetric dimensions and arrangements. The transmission losses (TL) of the proposed structures were investigated theoretically. The two types of ...
In addition, we designed a kind of membrane-type acoustic metamaterials with multi-masses, and studied the sound insulation property by changing the number, distribution type and mass magnitude of surrounding masses on the membrane. Result showed that the number, distribution type and mass magnitude...
Membrane-type acoustic metamaterials have received much attention for low-frequency sound manipulation, especially in the form of decorated membrane resonators. In this paper, such resonators are obtained using fused deposition modeling... A Leblanc,A Lavie - 《Journal of the Acoustical Society of Ame...