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Volume 24 Issue 3
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2016  >  24(3): 161-165
QIAN Li-xin, LIU Fei, HU Yan-hui, ZHAO Jian-bo. Feasible Region Programming Method and Analysis of Influential Factors for Design of Torpedo Nose Cap[J]. Journal of Unmanned Undersea Systems, 2016, 24(3): 161-165. doi: 10.11993/j.issn.1673-1948.2016.03.001
Citation: QIAN Li-xin, LIU Fei, HU Yan-hui, ZHAO Jian-bo. Feasible Region Programming Method and Analysis of Influential Factors for Design of Torpedo Nose Cap[J]. Journal of Unmanned Undersea Systems, 2016, 24(3): 161-165. doi: 10.11993/j.issn.1673-1948.2016.03.001
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Feasible Region Programming Method and Analysis of Influential Factors for Design of Torpedo Nose Cap

doi: 10.11993/j.issn.1673-1948.2016.03.001

  • Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621900, China

  • Received Date: 2016-02-22
  • Rev Recd Date: 2016-03-13
  • Publish Date: 2016-06-20
    Abstract
  • A feasible region programming method for designing frangible nose cap with tangent ogive is established by analyzing the aerodynamic loading in the air and the impulsive loading during water entry process. The method is employed to investigate the impact dynamics of a nose cap at water entry and the feasible region design with given boundary conditions. Furthermore, water-entry experiments of the nose cap are conducted. The results indicate that the feasible region defines the theoretical boundary of nose cap structure, the flight speed in the air determines the critical water-entry velocity in feasible region and the width of the region, and the ogive's length-to-diameter ratio has significant influence on the width of feasible region.

     

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