摘要
运用有限元程序MSC.Dytran对无限水域近场非接触爆炸冲击波和气泡脉动载荷下加筋板的毁伤进行研究,分析两种冲击载荷的不同作用方式、作用位置和毁伤效果。在此基础上分析加筋板结构和气泡脉动的相互影响,距离参数的改变对气泡中心移动方向、射流方向和射流强度的影响。并对Blake准则在弹性结构边界下的使用范围进行探讨。
The FEM software MSC. Dytran was used to study the stiffened plate＇s damage under the shock wave loads and bubble pulsation loads due to the non-contact explosion in infinite water area, then the different effect fashion, effect location and impact aftermath was analyzed. On the basis of FEA results, mutual influenee between structure of stiffened plate and bubble pulse were analyzed. And the influence aroused by bubble center＇s move direction, jet direction and jet intensity due to distance parameter changing was also studied. The employ scope of Blake guide line was discussed at the elastic structure boundary.
出处
《船海工程》
2009年第4期92-96,共5页
Ship & Ocean Engineering
基金
国家安全重大基础研究项目(51335020102)
关键词
水下爆炸
加筋板结构
数值仿真
气泡脉动
underwater explosion
structure of stiffened platc
numerical simulation
bubble pulse
