Tunable Band Gap Structures of Acoustic Metamaterials with Magnetorheological Elastomer Cladding Layers
One of the challenges associated with acoustic metamaterials is achieving a tunable performance without modifying the structure. In this paper, we propose two types of acoustic metamaterials with a magnetorheological elastomer (MRE), and the tunable band gap structures of the acoustic metamaterials are investigated by the finite element method (FEM). The MRE acts as a cladding layer, and its shear modulus can be changed by an applied magnetic field. The band gaps of the two kinds of acoustic metamaterials are calculated for various magnetic fields, and it is found that the frequency and width of the band gaps can be adjusted by controlling the applied magnetic field. These results are helpful for the application of acoustic metamaterials in active noise and vibration control.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: September 1, 2019
More about this publication?
- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Information for Advertisers
- Online User License
- Ingenta Connect is not responsible for the content or availability of external websites