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Volume 16 Issue 6
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2008  >  16(6): 044-47
TENG Duo, CHEN Hang, ZHU Ning, ZHU Guo-lei. Finite Element Analysis of Free-flooded Segmented Ring Transducer[J]. Journal of Unmanned Undersea Systems, 2008, 16(6): 044-47. doi: 10.11993/j.issn.1673-1948.2008.06.009
Citation: TENG Duo, CHEN Hang, ZHU Ning, ZHU Guo-lei. Finite Element Analysis of Free-flooded Segmented Ring Transducer[J]. Journal of Unmanned Undersea Systems, 2008, 16(6): 044-47. doi: 10.11993/j.issn.1673-1948.2008.06.009
shu

Finite Element Analysis of Free-flooded Segmented Ring Transducer

doi: 10.11993/j.issn.1673-1948.2008.06.009

  • College of Marine Engineering,Northwestern Polytechnical University, Xi′an 710072, China

  • Received Date: 2008-01-09
  • Rev Recd Date: 2008-02-03
  • Publish Date: 2008-12-30
    Abstract
  • The frequency equations about two resonances of free-flooded segmented ring transducer are obtained via traditional analytic method, and then a circumferential symmetry finite element model of the free-flooded segmented ring transducer is established. The two resonances and the vibration performance of the transducer are predicted through ANSYS, and a prototype of the free-flooded ring transducer is designed. The anechoic tank test for the prototype shows that the finite element method(FEM) is suitable for analyzing the cavity resonant performance of the free-flooded ring and the radial resonant performance of the segmented ring transducer, and the design error about resonant frequency can be controlled within 5%.A final transducer prototype based on the above research achieves the cavity resonance of 2.35 kHz, the radial resonance of 6.4 kHz, the maximum transmit voltage response level of 141.97 dB, the radial resonant 6 dB bandwidth of 3.9 to 9.4 kHz, and the overall available bandwidth (including the cavity resonance) of 2.1 to 10 kHz ±4 dB.

     

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