水下近场爆炸载荷作用下船底结构能量分析  

Energy analysis of ship bottom structure under the action of underwater explosion load

作　　者：刘虎 杨文龙 张志浩 叶仁传 LIU Hu;YANG Wen-long;ZHANG Zhi-hao;YE Ren-chuan(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《舰船科学技术》2023年第17期20-25,共6页Ship Science and Technology

摘　　要：本文基于普通拉格朗日欧拉(CEL)耦合法研究水下近距离下不同炸药量爆炸对舰船底部分段结构的能量分布情况及能量耗散情况,给出了船底分段结构在水下近场爆炸载荷作用下的计算方法。研究发现,炸药能量与炸药质量成严格正比关系,随着时间的增加不同工况下炸药耗散的能量基本相同,作用到船底分段结构的能量与炸药量呈正比的关系。被爆结构相同,炸药形状大致一致时,耗散到空气中的能量与炸药的质量呈严格线性关系。Based on CEL coupling method,this paper mainly studies the energy distribution and energy dissipation of ship bottom segment structure under different explosive quantities in the underwater at close distance,and presents a numerical calculation method of ship bottom segment structure under the action of underwater proximity explosion load.The results show that the energy of explosives is strictly proportional to the mass of explosives,and the energy dissipated by explosives is basically the same under different working conditions with the increase of time.When the structure of the explosive is the same and the shape of the explosive is roughly the same,the energy dissipated into the air is strictly linear with the mass of the explosive.The maximum shock pressure on each unit in the ship bottom section is not proportional to the mass of the package.

关 键 词：水下近距离爆炸 能量耗散 能量分布 

分 类 号：U663.1[交通运输工程—船舶及航道工程]