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Volume 29 Issue 5
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2021  >  29(5): 550-555
ZHAO Qi, GUO Jun, CAO Dong, WANG Hong-rui, SHAN Zhi-xiong. Simulation and Test of Wet Modal of a Torpedo[J]. Journal of Unmanned Undersea Systems, 2021, 29(5): 550-555. doi: 10.11993/j.issn.2096-3920.2021.05.006
Citation: ZHAO Qi, GUO Jun, CAO Dong, WANG Hong-rui, SHAN Zhi-xiong. Simulation and Test of Wet Modal of a Torpedo[J]. Journal of Unmanned Undersea Systems, 2021, 29(5): 550-555. doi: 10.11993/j.issn.2096-3920.2021.05.006
shu

Simulation and Test of Wet Modal of a Torpedo

doi: 10.11993/j.issn.2096-3920.2021.05.006
  • 1.

    The 705 Research Institute, China State Shipbuilding Corporation Limited, Xi’an 710077, China

  • 2.

    The 12 Research Institute, China State Shipbuilding Corporation Limited, Xi’an 713100, China

  • Received Date: 2020-11-09
  • Rev Recd Date: 2020-12-18
  • Publish Date: 2021-10-31
    Abstract
  • The finite element model of a typical torpedo structure is first modified by conducting a dry modal test and simulation analysis. Then, the LMS Virtual Lab boundary element fluid-solid coupling analysis method is used in the wet modal simulation analysis of the entire torpedo. The analysis results show that the inherent frequency of torpedo structure is reduced in all orders in water, with the first 3rd order decreasing by approximately 35% compared to that in air. New methodologies for solving complex fluid-solid coupling problems are achieved through the dry and wet modal simulation analysis, which can be used as a reference for torpedo structure optimization and noise reduction design

     

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