Acoustic metamaterial panel composed of funnel-shaped cell unit having multi-band negative material properties

Title
Acoustic metamaterial panel composed of funnel-shaped cell unit having multi-band negative material properties
Author
박준홍
Keywords
Acoustic metamaterial; Negative effective density; Tunable multi-band resonator
Issue Date
2014-11
Publisher
Australian Acoustical Society
Citation
In: INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control. (INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, 2014)
Abstract
This paper presents two dimensional sound-proof acoustic metamaterials having tunable multi-band negative effective mass density. The acoustic metamaterial panel was composed of many periodic funnel-shaped cell units into square lattice. Each unit cell operates as multi-band resonators. By tuning unit cell the local reflected acoustic wave was almost out of phase with the incident wave. It leads to the negative effective density and created band gap for absorbing incident sound energy without transmission. Measurement of the transmission loss and negative effective mass density was performed using fourmicrophone methods for characterization of barrier performance
URI
http://www.acoustics.asn.au/conference_proceedings/INTERNOISE2014/papers/p559.pdfhttp://repository.hanyang.ac.kr/handle/20.500.11754/70911
ISBN
9780909882037
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
Files in This Item:
Acoustic metamaterial panel composed of funnel-shaped cell unit having multi-band negative material properties.pdfDownload
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE