Vibration characteristics of a corrugated cylindrical shell piezoelectric transducer |
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| Authors: | Xu L Chen M Du H Hu H Hu Y Fan H Yang J |
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| Affiliation: | Institute of Astronautics and Aeronautics, University of Electronic Science and Technology, Chengdu, China; |
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| Abstract: | 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 μm thick, with radius of 5 mm and span angle of 120°. For these transducers the first resonance is of the order of 10-100 Hz. |
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