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Vibration characteristics of a corrugated cylindrical shell piezoelectric transducer

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7 Author(s)
Limei Xu ; Inst. of Astronaut. & Aeronaut., Univ. of Electron. Sci. & Technol., Chengdu ; Min Chen ; Hualong Du ; Hongping Hu
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We study coupled extensional and flexural cylindrical vibrations of a corrugated cylindrical shell piezoelectric transducer consisting of multiple pieces of circular cylindrical surfaces smoothly connected along their generatrices. Using the classical shell theory, a theoretical solution is obtained. Based on the solution, basic vibration characteristics of resonant frequencies, mode shapes, and internal forces are calculated and examined for the corrugated transducers, consisting of a few circular pieces each about 50 mum thick, with radius of 5 mm and span angle of 120deg. For these transducers the first resonance is of the order of 10-100 Hz.

Published in:

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on  (Volume:55 ,  Issue: 11 )

Date of Publication:

November 2008

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