舱室内爆毁伤效应数值模拟Numerical simulation on damage effect of cabin internal explosion
熊飞;石全;陈邦均;
XIONG Fei;SHI Quan;CHEN Bang-jun;Unit 78616;Department of Equipment Command and Management,Ordnance Engineering College;
摘要(Abstract)：
为了分析半穿甲战斗部击穿舰舷防护结构后,在舱室内部爆炸产生的毁伤效应,运用非线性动力学有限元软件ANSYS/LSDYNA对舱室内爆毁伤过程进行了数值模拟。根据仿真结果,详细分析舱室内爆毁伤全过程,并研究舱壁厚度、炸药质量及炸点位置对舱室内爆毁伤效应的影响。结果表明:各舱壁之间的焊接处最容易发生失效破坏,且各舱壁的毁伤模式均有显著差异;随着舱壁厚度的增加、炸药质量的减小,舱室由整体分解与局部破口的复合毁伤模式,向焊缝撕裂破坏毁伤模式转变;当炸点位置不同时,舱室毁伤模式有显著区别,炸点位置不在舱室中心时,舱室出现花瓣撕裂毁伤模式。可为舰船防护以及导弹炸点位置的确定提供参考。
In order to analyze the damage effect of cabin internal explosion after semi-armor-piercing warhead punctured the ship broadside defensive structure,the process of cabin internal explosion was numerically simulated by ANSYS/LS-DYNA software.The whole process of internal explosion was analyzed in detail,and the effect of bulkhead thickness,the quality of explosives and exploding points on internal explosion damage effect were researched.The analysis results showed that the welds between bulkheads were most likely to fail,and the damage model of bulkheads were significantly different.The damage model of cabin changed from the composite damage model of the overall damage and the local breakage to weld tearing damage model as bulkhead thickness increased and quality of explosives reduced.Cabin damage model was significantly different with different exploding point.The cabin appeared petal tearing damage model when the exploding point was not in the center of the chamber.The analysis results could provide a reference for cabin defense and determination of the location of warhead's exploding point.
关键词(KeyWords)：
舱室;内爆;毁伤效应;数值模拟
Cabin;Internal explosion;Damage effect;Numerical simulation
基金项目(Foundation):
作者(Authors):
熊飞;石全;陈邦均;
XIONG Fei;SHI Quan;CHEN Bang-jun;Unit 78616;Department of Equipment Command and Management,Ordnance Engineering College;
参考文献(References)：
- [1]朱建方,王伟力,曾亮.舰艇舱室内爆毁伤的建模与仿真分析[J].系统仿真学报,2009,21(22):7 066-7 068.ZHU Jian-fang,WANG Wei-li,ZENG Liang.Modeling and simulation of damage effect of ship cabin subject to internal explosion[J].Journal of System Simulation,2009,21(22):7 066-7 068.
- [2]侯海量,朱锡,梅志远.舱内爆炸载荷及舱室板架结构的失效模式分析[J].爆炸与冲击,2007,27(2):151-157.HOU Hai-liang,ZHU Xi,MEI Zhi-yuan.Study on the blast load and failure mode of ship structure subject to internal explosion[J].Explosion and Shock Waves,2007,27(2):151-157.
- [3]李伟,朱锡,梅志远,等.战斗部舱内爆炸对舱室结构毁伤的实验研究[J].舰船科学与技术,2009,31(3):34-37.LI Wei,ZHU Xi,MEI Zhi-yuan,et al.Experimental studies on damage effect of missile warhead on cabin's structure under internal explosion[J].Ship Science and Technology,2009,31(3):34-37.
- [4]GUILKEY J E,HARMAN T B,BANERJEE B.An Eulerian-Lagrangian approach for simulating explosions of energetic devices[J].Computers and Structures,2007,85(11):660-674.
- [5]吴林杰,朱锡,陈长海.爆点位置对空中接触爆炸下加筋板架破坏的影响[J].中国舰船研究,2012,7(6):16-22.WU Lin-jie,ZHU Xi,CHEN Chang-hai.Effects of changing the explosive position on the damage of stiffened plates subjected to air contact explosion[J].Chinese Journal of Ship Research,2012,7(6):16-22.