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Proceedings Paper

Theory and experiment research of two-dimension acoustic metamaterial
Author(s): Hongwei Sun; JianFeng Li; Zhiming Li; Ying Li
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Paper Abstract

This paper presents modeling and analysis methods for design of a acoustic metamaterial panel consisting of two isotropic plates and small membrane-mass subsystems for absorption of low frequencies transverse elastic waves. Two models of a unit cell are derived and used to demonstrate the existence of negative effective material properties. Moreover, the design of experiment sample confirms that the model and analysis methods are valid. (1) The frequency of the membrane-mass subsystems are uniform distribution in whole acoustic metamaterial panel have two vibration models. (2) The different distributions of membrane-mass subsystems and their resonance frequencies result in different vibration isolation characteristics. (3) PSV is used to test and the result show that a low frequency wave absorber does not require nano-manufacturing techniques. (4) If we design the frequency of the membrane-mass subsystems different it can change the character of the metamaterial panel.

Paper Details

Date Published: 10 April 2013
PDF: 7 pages
Proc. SPIE 8688, Active and Passive Smart Structures and Integrated Systems 2013, 868829 (10 April 2013); doi: 10.1117/12.2012162
Show Author Affiliations
Hongwei Sun, Jiangsu Automation Research Institute (China)
Nanjing Univ. of Science and Technology (China)
JianFeng Li, Jiangsu Automation Research Institute (China)
Zhiming Li, Jiangsu Automation Research Institute (China)
Ying Li, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8688:
Active and Passive Smart Structures and Integrated Systems 2013
Henry Sodano, Editor(s)

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