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Numerical investigation of the dynamic response of optimized composite elliptical submersible pressure hull subjected to non-contact underwater explosion

机译：最优复合椭圆潜水潜艇非接触水下爆炸动力响应的数值研究

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摘要

Predicting the dynamic response of a floating and submerged structure subjected to underwater explosion is greatly complicated by the explosion of a high explosive, propagation of shock wave, bubble-pulse and complex fluid-structure interaction (FSI) phenomena. A numerical simulation has been carried out to examine the behavior of optimized composite elliptical submersible pressure hull to non-contact underwater explosion (UNDEX) and take the effect of bubble-pulse. Various explosive weights and explosion distances were explored to determine the critical weights and safe distance. The optimization process is performed using ANSYS parametric design language (APDL). After that the finite element package ABAQUS was used to model the UNDEX and the FSI phenomena. Time histories of the wet-surface displacement, velocity and Tsai-Hill failure index are presented for different composite plies. All of these results can be a valuable reference for designing underwater vehicles to resist UNDEX. (C) 2014 Elsevier Ltd. All rights reserved.
机译：高爆炸物的爆炸，冲击波的传播，气泡脉冲和复杂的流固耦合现象（FSI）极大地预测了水下爆炸作用下的浮潜结构的动力响应。进行了数值模拟，以研究优化的复合椭圆潜油耐压壳对非接触式水下爆炸（UNDEX）的行为，并考虑气泡脉冲的影响。探索了各种炸药重量和爆炸距离，以确定临界重量和安全距离。优化过程是使用ANSYS参数设计语言（APDL）执行的。之后，使用有限元程序包ABAQUS对UNDEX和FSI现象进行建模。给出了不同复合层的湿表面位移，速度和蔡-希尔破坏指数的时程。所有这些结果可以为设计抵抗UNDEX的水下航行器提供有价值的参考。 （C）2014 Elsevier Ltd.保留所有权利。

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  • 来源
    《Composite Structures》 |2015年第3期|121-133|共13页
  • 作者

    Fathallah Elsayed; Qi Hui; Tong Lili; Helal Mahmoud;

  • 作者单位

    Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Heilongjiang Pr, Peoples R China|MTC Kobry Elkobba, Dept Civil Engn, Cairo 11787, Egypt;

    Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Heilongjiang Pr, Peoples R China;

    Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Heilongjiang Pr, Peoples R China;

    Mansoura Univ, Fac Engn, Prod & Mech Design Dept, Mansoura, Egypt;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Dynamic response; Underwater explosion; Pressure hull; Shock wave; Bubble-pulse;

    机译：动力响应水下爆炸耐压船体冲击波气泡脉冲;

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