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弹箭与制导学报 >

2017 , Vol. 37 >Issue 2: 80 - 82,94

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2017.02.019

弹药技术

远场水下爆炸作用下平板的冲击响应仿真

  • 辛春亮 ,
  • 王新泉 ,
  • 涂建 ,
  • 王伟 ,
  • 叶志萍
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  • 1 北京航天长征飞行器研究所, 北京 100076
    2 中国航天员科研训练中心, 北京 100094

辛春亮(1973-), 男, 山东日照人, 研究员, 博士, 研究方向: 战斗部设计和数值模拟.

收稿日期: 2016-06-12

  网络出版日期: 2025-05-23

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Numerical Simulation of Plate Response Subject to Far-field Underwater Explosion

  • XIN Chunliang ,
  • WANG Xinquan ,
  • TU Jian ,
  • WANG Wei ,
  • YE Zhiping
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  • 1 Beijing Institute of Space Long March Vehicle, Beijing 100076, China
    2 China Astronaut Research and Training Center, Beijing 100094, China

Received date: 2016-06-12

  Online published: 2025-05-23

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摘要

为了对舰船水下防护结构设计提供参考,采用LS-DYNA软件中的声固耦合法对远场水下爆炸作用下平板的冲击响应问题进行了模拟,计算结果与公认的双渐进近似算法计算结果较为接近.计算模型中采用了空化声单元和粘性非反射边界,并对比了网格加密、不同水柱高度和是否考虑空化的影响.LS-DYNA的声固耦合法计算速度快,计算准确度接近公认的双渐进近似算法,为国内水下爆炸数值计算人员提供了一种新的思路和计算工具.

关键词： LS-DYNA软件; 远场水下爆炸; 粘性边界条件; 数值模拟

本文引用格式

辛春亮 , 王新泉 , 涂建 , 王伟 , 叶志萍 . 远场水下爆炸作用下平板的冲击响应仿真[J]. 弹箭与制导学报, 2017 , 37(2) : 80 -82,94 . DOI: 10.15892/j.cnki.djzdxb.2017.02.019

Abstract

Acoustic-structure interaction method in LS-DYNA software was used to solve plate response subject to far-field underwater explosion. Cavitation acoustic finite element (CAFE) and non-reflecting boundary were used in UNDEX models. Results with different fluid mesh density, different length of fluid column, with or without CAFE effects were compared with DAA results. This kind of method could offer significant savings in computational time over DAA without greatly affecting accuracy of results.

Key words： LS-DYNA software; far-field underwater explosion; viscous boundary condition; numerical simulation

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参考文献

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辛春亮, 秦健, 刘科种,等. 基于LS-DYNA 软件的水下爆炸数值模拟研究[J]. 弹箭与制导学报, 2008. 28 (3): 156- 158.
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