水下近距爆炸作用下船体梁的动态响应特性

朱锡 李海涛 牟金磊 黄晓明

朱锡, 李海涛, 牟金磊, 黄晓明. 水下近距爆炸作用下船体梁的动态响应特性[J]. 高压物理学报, 2010, 24(5): 343-350 . doi: 10.11858/gywlxb.2010.05.005
引用本文: 朱锡, 李海涛, 牟金磊, 黄晓明. 水下近距爆炸作用下船体梁的动态响应特性[J]. 高压物理学报, 2010, 24(5): 343-350 . doi: 10.11858/gywlxb.2010.05.005
ZHU Xi, LI Hai-Tao, MU Jin-Lei, HUANG Xiao-Ming. Dynamic Response Characteristics of Ship-Like Beam Subjected to Underwater Explosion in Near Field[J]. Chinese Journal of High Pressure Physics, 2010, 24(5): 343-350 . doi: 10.11858/gywlxb.2010.05.005
Citation: ZHU Xi, LI Hai-Tao, MU Jin-Lei, HUANG Xiao-Ming. Dynamic Response Characteristics of Ship-Like Beam Subjected to Underwater Explosion in Near Field[J]. Chinese Journal of High Pressure Physics, 2010, 24(5): 343-350 . doi: 10.11858/gywlxb.2010.05.005

水下近距爆炸作用下船体梁的动态响应特性

doi: 10.11858/gywlxb.2010.05.005
详细信息
    通讯作者:

    朱锡

Dynamic Response Characteristics of Ship-Like Beam Subjected to Underwater Explosion in Near Field

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    Corresponding author: ZHU Xi
  • 摘要: 为研究舰船在水下近距爆炸作用下的结构响应及损伤模式,以相似准则为基础,设计了船体梁模型,选用4种不同能量结构的炸药,将其置于模型中部正下方爆炸,通过改变药量和爆距,实验研究了船体梁在近距爆炸作用下的动态响应特性。利用高速摄影技术观察了模型的整个运动过程,结合实验数据定量分析了结构的应变和加速度响应特性,比较了冲击波和气泡脉动对结构的损伤特点。研究发现:近距爆炸气泡脉动会使结构下方形成一个低压流体区,该低压区的存在会使模型受到中垂弯矩作用,并可能使其发生中垂弯曲破坏;随着爆距的增大,爆炸能量与损伤效果之间的相关性变得明显;近距条件下,为了发挥爆炸气泡的最大破坏作用,爆距应该接近于最大气泡半径。

     

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出版历程
  • 收稿日期:  2009-09-28
  • 修回日期:  2009-10-25
  • 发布日期:  2010-10-15

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