ZHENG Lü, PANG Fuzhen, YAO Xiongliang, KANG Fenghui, CONG Gang, CHEN Lin. Vibration Wave Propagation Characteristics Optimization Analysis ofthe Typical Pedestal on Double Cylindrical Shell[J]. Chinese Journal of Ship Research, 2012, 7(4): 63-68. doi: 10.3969/j.issn.1673-3185.2012.04.011
Citation: ZHENG Lü, PANG Fuzhen, YAO Xiongliang, KANG Fenghui, CONG Gang, CHEN Lin. Vibration Wave Propagation Characteristics Optimization Analysis ofthe Typical Pedestal on Double Cylindrical Shell[J]. Chinese Journal of Ship Research, 2012, 7(4): 63-68. doi: 10.3969/j.issn.1673-3185.2012.04.011

Vibration Wave Propagation Characteristics Optimization Analysis ofthe Typical Pedestal on Double Cylindrical Shell

doi: 10.3969/j.issn.1673-3185.2012.04.011
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  • Corresponding author: ZHENG lv
  • Received Date: 2012-03-19
  • Accepted Date: 2012-08-20
  • Rev Recd Date: 2012-04-05
  • Publish Date: 2012-08-25
    © 2012 The Authors. Published by Editorial Office of Chinese Journal of Ship Research. Creative Commons License
    This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • According to impedance mismatch and wave mode conversion in heterogeneous structure which based on wave analysis method,the characteristics of vibration wave propagation in typical submarine structure were studied. Based on this,vibration and noise reduction performance of artificial transmission loss base was analyzed through FEM/BEM coupled method. By reviewing vibration wave transmission characteristics for composite plate,the conclusions are drawn that the structure impedance changes,when the structure cross section mutates. Thus,leading to impedance mismatch between the structures,so the vibration wave will reflect and transmit in the mutant cross-section,and reduce the transmission rate of vibration. An artificially constructed transmission loss base was designed using the theory,and the vibration and noise reduction performance of the base was verified by FEM / BEM coupled method.
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