近场水下爆炸气泡射流载荷冲击船体外板的动响应分析  

Dynamic response of hull plates subjected to near field underwater explosion bubble jet load

作　　者：姜忠涛[1] 李烨 庞学佳[3] 王诗平 JIANG Zhongtao;LI Ye;PANG Xuejia;WANG Shiping(College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001, China;Hunan Maglev Technology Research Center Co.,Ltd.,Changsha 410000, China;The 703 Research Institute of CSJC,Harbin 150078,China)

机构地区：[1]哈尔滨工程大学船舶工程学院,哈尔滨150001 [2]湖南磁浮技术研究中心有限公司,长沙410000 [3]中国船舶重工集团公司第七0三研究所,哈尔滨150078

出　　处：《振动与冲击》2018年第9期214-220,共7页Journal of Vibration and Shock

基　　金：国家自然科学基金(U1430236;51479041;51279038)

摘　　要：基于ABAQUS软件中的耦合欧拉-拉格朗日(CEL)算法,模拟近场水下爆炸气泡射流载荷对船体外板的冲击过程,将CEL算法的数值结果与Obara试验结果进行对比,验证数值方法的有效性。在此基础上对水下爆炸射流的载荷压力特性、射流的速度分布特性及射流引起的结构剪应力分布特性进行研究,旨在为实际海战中船体外板遭受水下爆炸射流载荷的抗冲击设计提供一定参考。Based on the coupled Euler-Lagrange（ CEL） algorithm in the software ABAQUS,processes of near field underwater explosion bubble jet load impacting hull plates were simulated. The numerical results of CEL algorithm agreed well with Obara ’ test ones, so the effectiveness of the numerical method was verified. Then, the load pressure characteristics of underwater explosion jet,jet velocity distribution features and the distribution features of structural shear stress induced by jet were investigated. The results provided a reference for the anti-impact design of hull plates against underwater explosion jet load in practical sea-battles.

关 键 词：水下爆炸 射流载荷 船体外板 动响应分析 

分 类 号：U661.3[交通运输工程—船舶及航道工程]