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Volume 20 Issue 1
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2012  >  20(1): 014-18
BAI Kun-xue, YIN Shao-ping. Finite Element Analysis for Torpedo Seawater Pipe Based on HyperMesh and Nastran[J]. Journal of Unmanned Undersea Systems, 2012, 20(1): 014-18. doi: 10.11993/j.issn.1673-1948.2012.01.003
Citation: BAI Kun-xue, YIN Shao-ping. Finite Element Analysis for Torpedo Seawater Pipe Based on HyperMesh and Nastran[J]. Journal of Unmanned Undersea Systems, 2012, 20(1): 014-18. doi: 10.11993/j.issn.1673-1948.2012.01.003
shu

Finite Element Analysis for Torpedo Seawater Pipe Based on HyperMesh and Nastran

doi: 10.11993/j.issn.1673-1948.2012.01.003
  • 1.

    The 705 Research Institute, China Shipbuilding Industry Corporation, Xi′an 710075, China

  • 2.

    Science and Technology on Underwater Information and Control Laboratory , Xi′an 710075, China

  • Received Date: 2011-05-23
  • Rev Recd Date: 2011-06-29
  • Publish Date: 2012-02-20
    Abstract
  • To identify modal parameters of a seawater pipe and find out frequency bands of resonance, a process covering three-dimensional modeling, meshing, and finite element analysis is established by using the softwares UG, HyperMesh, and Msc.Nastran. Furthermore, the first 8 orders of natural frequencies and vibration modes are obtained according to the free mo-dal analysis of the seawater pipe. Simulation results show that the first 8 orders of natural frequencies are mainly in low-frequency range, and the bellows are the target of vibration control of seawater pipeline because they possess the most variation of vibration amplitude. This process is also verified to be high in efficiency and precision.

     

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