Research on the Broadband Dual-Excited Underwater Acoustic Transducer

Kai Zhang; De Shi Wang; Peng Wang; Yi Qun Du

doi:10.4028/www.scientific.net/AEF.2-3.144

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HomeAdvanced Engineering ForumAdvanced Engineering Forum Vols. 2-3Research on the Broadband Dual-Excited Underwater...

Research on the Broadband Dual-Excited Underwater Acoustic Transducer

Abstract:

The performance of bandwidth and transmitting voltage response to the piezoelectric dual-excited underwater acoustic transducer are studied by FEM software ANSYS in the paper. At first, the mechanism of the dual-excited transducer is analyzed, once this is done, The FEM models with different axial dimension of the piezoelectric stack and the mid mass, Al and steel are specified for the material of mid mass respectively. the calculated curves are contrasted, the results were found that the appropriate proportion of the mid-mass to the stack will broaden the bandwidth and enhance the transmitting voltage response, the increase of the thickness of the mid-mass will reduce the transmitting voltage response, and the bandwidth can be expanded to 13kHz, the resonance frequency has shifted to a higher value, it ranges from 34kHz to 46kHz. The results show that one octave bandwidth could be achieved and provide support for the next production and experiment of the broadband underwater acoustic transducer.

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Periodical:

Advanced Engineering Forum (Volumes 2-3)

Pages:

144-147

DOI:

https://doi.org/10.4028/www.scientific.net/AEF.2-3.144

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Online since:

December 2011

Authors:

Kai Zhang, De Shi Wang, Peng Wang, Yi Qun Du

Keywords:

Bandwidth (BW), Dual-Excited, Modal Coupling, Underwater Acoustic Transducer

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