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http://dx.doi.org/10.7776/ASK.2008.27.4.183

Analysis on the Acoustic Beat of a Slightly Asymmetric Cylindrical Shell  

Ahn, Sung-Jong (서울대학교 기계항공공학부)
Kang, Yeon-June (서울대학교 기계항공공학부)
Kim, Seock-Hyun (강원대학교 기계메카트로닉스공학부)
Park, Sung-Yong (서울대학교 기계항공공학부)
Publication Information
The Journal of the Acoustical Society of Korea / v.27, no.4, 2008 , pp. 183-190 More about this Journal
Abstract
In this paper, radiation characteristics of the beating sound are analytically investigated on a slightly asymmetric cylindrical shell. The cylindrical shell isan efficient model to consider the beat characteristics of Korean bells. Slight asymmetry in Korean bells makes mode pair which has close frequency components and the interaction of each mode pair produces beating sound. Based on the analytical model, the radiated sound field is determined. Using the sound beat map, the beating sound vs. direction and distance is investigated. Finally, results of the theoretical method are compared with those of the boundary element method to verify the validity.
Keywords
Slightly asymmetric; Beat phenomenon; Mode pair; Sound beat map;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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