A Novel Approach to Density Near-Zero Acoustic Metamaterials
Joint Authors
Sečujski, Milan
Cselyuszka, Norbert
Crnojević-Bengin, Vesna
Source
Advances in Materials Science and Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-09-30
Country of Publication
Egypt
No. of Pages
6
Abstract EN
The study demonstrates the possibility of achieving near-zero propagation of sound waves in acoustic metamaterials based on a membrane-based metamaterial unit cell which exhibits effective mass density of Lorentzian type.
The unit cell, which represents the acoustic counterpart of the split ring resonator, was previously used as a building block of left-handed metamaterials, as it exhibits negative density at certain frequencies.
In this study we show that its application can be extended to achieving propagation of sound waves at a frequency where its effective density equals zero.
This effect can be exploited in a range of applications where extremely low phase variation over long physical distances is required, such as energy tunneling or tailoring the acoustic radiation phase pattern in arbitrary ways.
After discussing the dependence of the frequency response of the unit cell on the properties of the host, we show that it can be used to design near-zero acoustic filters with low insertion loss and steep roll-off.
Finally, we show that it can be used to achieve simultaneous near-zero propagation at multiple, independently chosen frequencies.
American Psychological Association (APA)
Sečujski, Milan& Cselyuszka, Norbert& Crnojević-Bengin, Vesna. 2015. A Novel Approach to Density Near-Zero Acoustic Metamaterials. Advances in Materials Science and Engineering،Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1053581
Modern Language Association (MLA)
Sečujski, Milan…[et al.]. A Novel Approach to Density Near-Zero Acoustic Metamaterials. Advances in Materials Science and Engineering No. 2015 (2015), pp.1-6.
https://search.emarefa.net/detail/BIM-1053581
American Medical Association (AMA)
Sečujski, Milan& Cselyuszka, Norbert& Crnojević-Bengin, Vesna. A Novel Approach to Density Near-Zero Acoustic Metamaterials. Advances in Materials Science and Engineering. 2015. Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1053581
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1053581