Analysis and Design of a Flextensional Transducer by Means of the Finite Element Method
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概要
- 論文の詳細を見る
A class IV flextensional transducer is a typical underwater acoustic transducer capable of generating high power sound waves. The small extensional displacement of a piezoceramic stack in the major axis of the transducer causes a large displacement along the minor axis by the leverage effect of a compliant shell, and this provides the large volume displacement for high power acoustic waves. High power and long term usage of the transducer causes accumulation of a lot of heat inside the structure, which results in the transducer performance to deteriorate. In this study, the effects of the structural variables of the transducer were investigated using the finite element method, and their influences were prioritized to design a transducer to have the highest sound pressure with the lowest heat generation at a desired operation frequency. The transducer designed showed an 11.2% increase in its sound pressure and a 16.5% decrease in its heat generation in comparison with a basic model of a conventional structure.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-05-25
著者
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Roh Yongrae
School Of Mechanical Engineering Kyungpook National University
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Roh Yongrae
School of Mechanical Engineering, Kyungpook National University, 1370 Sankyuk-dong, Buk-gu, Daegu 702-701, Korea
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Kang Kookjin
School of Mechanical Engineering, Kyungpook National University, 1370 Sankyuk-dong, Buk-gu, Daegu 702-701, Korea
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