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Title: Effect of periodic structure on sound propagation
Authors: Gupta, A.
Chew, C.H. 
Lim, K.M. 
Keywords: Finite element method
Frequency filter
Periodic structure
Sound barrier
Issue Date: 2010
Citation: Gupta, A., Chew, C.H., Lim, K.M. (2010). Effect of periodic structure on sound propagation. Proceedings of SPIE - The International Society for Optical Engineering 7522 : -. ScholarBank@NUS Repository.
Abstract: In this study, propagation of acoustic wave through a periodic structure has been analyzed. Such a periodic structure has been found to attenuate sound significantly in certain frequency bands, and therefore it can be used as a frequency filter and sound barrier. Experiments were performed to measure the sound attenuation by the periodic structure made of acrylic cylinders. The experimental results were compared with a simulation study using the finite element method, and they are in good agreement. The benefit of such structure is that it is light weight compared to the solid barriers, and it can be tailored according to the frequency of the sound source to be attenuated. © 2010 SPIE.
Source Title: Proceedings of SPIE - The International Society for Optical Engineering
ISBN: 9780819479129
ISSN: 0277786X
DOI: 10.1117/12.851323
Appears in Collections:Staff Publications

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