Review of phononic crystals and acoustic metamaterials

Chen, Qiqi and Zhang, Bo and Bai, Yutian and Wang, Liheng and M. R. M., Rejab (2020) Review of phononic crystals and acoustic metamaterials. In: IOP Conference Series: Materials Science and Engineering; 5th International Conference on Mechanical Engineering Research 2019, ICMER 2019 , 30 - 31 July 2019 , Vistana Hotel, Kuantan. pp. 1-10., 788 (012052). ISSN 1757-8981 (Print), 1757-899X (Online)

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As a new type of acoustic functional material, phononic crystal has great research value and application environment. It is a periodic structure of two or more elastic materials, which are derived from photonic crystals. The main research work on phononic crystals focuses on the two band gap formation mechanisms of Bragg scattering and local resonance, and some new methods of vibration reduction and noise reduction can be obtained by studying its banding mechanism. Similarly, a "metamaterial" has been proposed for the ability to achieve new vibration reduction and noise reduction, which is a composite structure or material with physical properties not available in natural materials. By analysing the acoustic metamaterials of various structures, in this work we can understand how to achieve vibration reduction and noise reduction under the local resonance mechanism.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Phononic crystals; Band mechanism; Metamaterial; Vibration reduction; Local resonance
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Faculty/Division: Faculty of Mechanical & Manufacturing Engineering
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 23 Mar 2022 03:13
Last Modified: 23 Mar 2022 03:13
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