Results 81 to 90 of about 9,256 (180)

Low frequency acoustic properties of bilayer membrane acoustic metamaterial with magnetic oscillator

Theoretical and Applied Mechanics Letters, 2017
A bilayer membrane acoustic metamaterial was proposed to overcome the influence of the mass law on traditional acoustic materials and obtain a lightweight thin-layer structure that can effectively isolate low frequency noise. The finite element analysis (
Nansha Gao, Hong Hou, Yihao Mu
doaj   +1 more source

Analysis of Influencing Factors for Stackable and Expandable Acoustic Metamaterial with Multiple Tortuous Channels. [PDF]

Materials (Basel), 2023
Bi S, Yang F, Shen X, Zhang J, Yang X, Zhang H, Peng W.   +6 more
europepmc   +1 more source

Ultrathin acoustic metamaterial as super absorber for broadband low-frequency underwater sound. [PDF]

Sci Rep, 2023
Zhou X, Wang X, Xin F.
europepmc   +1 more source

Study on a Hexagonal Acoustic Metamaterial Cell of Multiple Parallel-Connection Resonators with Tunable Perforating Rate. [PDF]

Materials (Basel), 2023
Cheng H, Yang F, Shen X, Yang X, Zhang X, Bi S.   +5 more
europepmc   +1 more source

Double-negative flexural acoustic metamaterial

New Journal of Physics, 2014
We present an acoustic metamaterial for flexural waves with both negative density and elastic modulus. By means of an analytical lumped-element approach, we introduce a combination of resonant elements on the surface of a plate.
Vitalyi E Gusev, Oliver B Wright
doaj   +1 more source

Transmissive Labyrinthine Acoustic Metamaterial-Based Holography for Extraordinary Energy Harvesting. [PDF]

Adv Eng Mater, 2023
Bansal S, Choi C, Hardwick J, Bagchi B, Tiwari MK, Subramanian S.   +5 more
europepmc   +1 more source

Effective Parameters of Acoustic Metamaterials

Russian Physics Journal, 2018
Analytical expressions are presented for the wave number, the characteristic wave impedance, and the refractive index of homogeneous longitudinal plane waves propagating in an acoustic metamaterial with dissipative losses. The metamaterial is characterized by the effective scalar material parameters: the complex density and the compressibility.
openaire   +2 more sources

Effects of Aperture Shape on Absorption Property of Acoustic Metamaterial of Parallel-Connection Helmholtz Resonator. [PDF]

Materials (Basel), 2023
Bi S, Yang F, Tang S, Shen X, Zhang X, Zhu J, Yang X, Peng W, Yuan F.   +8 more
europepmc   +1 more source

Application of Cellulose and Paper-Based Products in Building Acoustics

Archives of Acoustics
This article presents a comprehensive acoustic study of paper-based building products: cellulose wool,paperboard, corrugated cardboard, and honeycomb panels. The material configurations included the intact form as well as the various modifications, i.e.,
Aleksandra KLIMEK, Jerzy F. ŁATKA, Paweł NIERADKA, Andrzej DOBRUCKI   +3 more
doaj   +1 more source

Study on Sound-Insulation Performance of an Acoustic Metamaterial of Air-Permeable Multiple-Parallel-Connection Folding Chambers by Acoustic Finite Element Simulation. [PDF]

Materials (Basel), 2023
Peng W, Bi S, Shen X, Yang X, Yang F, Wang E.   +5 more
europepmc   +1 more source