S. Liu, Yuechao Zhao, Dan Zhao, Lifeng Feng, Xinxin Shi, Lu Chen
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引用次数: 2
Abstract
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.
期刊介绍：
Cessation. Acta Acustica united with Acustica (Acta Acust united Ac), was published together with the European Acoustics Association (EAA). It was an international, peer-reviewed journal on acoustics. It published original articles on all subjects in the field of acoustics, such as
• General Linear Acoustics, • Nonlinear Acoustics, Macrosonics, • Aeroacoustics, • Atmospheric Sound, • Underwater Sound, • Ultrasonics, • Physical Acoustics, • Structural Acoustics, • Noise Control, • Active Control, • Environmental Noise, • Building Acoustics, • Room Acoustics, • Acoustic Materials and Metamaterials, • Audio Signal Processing and Transducers, • Computational and Numerical Acoustics, • Hearing, Audiology and Psychoacoustics, • Speech,
• Musical Acoustics, • Virtual Acoustics, • Auditory Quality of Systems, • Animal Bioacoustics, • History of Acoustics.
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