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Title: Parametric study on rectangular sonic crystal
Authors: Gupta, A.
Lim, K.-M. 
Chew, C.H. 
Keywords: Periodic structure
Rectangular sonic crystal
Webster horn equation
Issue Date: 2012
Source: Gupta, A., Lim, K.-M., Chew, C.H. (2012). Parametric study on rectangular sonic crystal. Applied Mechanics and Materials 152-154 : 281-286. ScholarBank@NUS Repository.
Abstract: Sonic crystals are periodic structures made of sound hard scatterers which attenuate sound in a range of frequencies. For an infinite periodic structure, this range of frequencies is known as band gap, and is determined by the geometric arrangement of the scatterers. In this paper, a parametric study on rectangular sonic crystal is presented. It is found that geometric spacing between the scatterers in the direction of sound propagation affects the center frequency of the band gap. Reducing the geometric spacing between the scatterers in the direction perpendicular to the sound propagation helps in better sound attenuation. Such rectangular arrangement of scatterers gives better sound attenuation than the regular square arrangement of scatterers. The model for parametric study is also supported by some experimental results. © (2012) Trans Tech Publications.
Source Title: Applied Mechanics and Materials
ISBN: 9783037853528
ISSN: 16609336
Appears in Collections:Staff Publications

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