Effects of a porous jacket on sound radiated from a pipe

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Abstract
Conventional pipe laggings incorporate a porous jacket and an impervioius outer cladding sheet. It has been observed during investigations of such pipe laggings that a simple porous jacket applied by itself to a pipe can actually increase the sound radiated. Reasons for this phenomenon are discussed. The effect of rigid frame porous jacket around a pipe is examined theoretically for the breathing, bending and ovalling modes of pipe vibration. The predicted insertion loss associated with the bending mode of pipe vibration is compared with the corresponding experimental result and some of the results of a parametric study are given.
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Author(s)
Kanapathipillai, Sangarapillai
Byrne, Kerry
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Publication Year
1996
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Journal Article
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UNSW Faculty
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download JASA Paper 1996.pdf 702.5 KB Adobe Portable Document Format
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