舰舷液舱防御爆炸冲击波和高速破片群耦合毁伤机理研究

项目名称： 舰舷液舱防御爆炸冲击波和高速破片群耦合毁伤机理研究

项目编号： No.51509196

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 其他

项目作者： 徐双喜

作者单位： 武汉理工大学

项目金额： 21万元

中文摘要： 防护液舱犹如舰船的“防弹衣”，能有效防御爆炸冲击波和吸收高速破片群。科学合理地设置防护液舱可大幅提升舰船的生命力。反舰导弹战斗部爆炸时产生的高压冲击波和高速破片群所带来的耦合毁伤破坏效应，比单一攻击威力、双者简单叠加攻击威力均要大。当前，在液舱防御机理研究时载荷多集中在破片或冲击波单一打击，对于多发破片联合打击及破片群与爆炸冲击波耦合打击研究甚少。本项目开展高速破片群穿甲爆炸冲击波预损伤背液板、前液板的侵彻机理研究，高速破片群在液体中产生的冲击波、水垂和射流特性研究，爆炸冲击波作用下破片群预损伤背液板、前液板的毁伤机理研究，爆炸冲击波作用下液体中冲击波和空穴的特性研究。该项目旨在建立爆炸冲击波和高速破片群耦合打击液舱力学模型，以揭示爆炸冲击波和高速破片群耦合打击下液舱的毁伤机理，并构建液舱防御爆炸冲击波和高速破片群耦合打击能力的评估方法，从而为液舱设计提供理论依据。

中文关键词： 爆炸冲击；毁伤机理；高速破片；流固耦合；防护结构

英文摘要： Liquid cabins of vessels perform as body armors of a chip, which can defend against the high-pressure shock wave as well as absorb the high-speed fragments. The vitality and combat capability of vessels can be enhanced by setting the safety liquid cabins properly. The anti-ship missile is one of the main weapons attacking ships, the synthetic effect produced by the high-pressure shock wave and high-speed fragments when missiles exploded will cause more severe damage than that caused by a single attack power or a simple superposition of attack power. During the striking process, the high-speed fragments will create honeycomb-like perforations on the outside plate of liquid tank, which makes it easier for the high-pressure shock wave to penetrate the outside plate, thus creating serious damage on protective liquid tank and ship. It is obvious that the synthetic effect of shock wave and high-speed fragments is more powerful than the solo attack. Hence, it is very important to study the defense mechanism of the broadside tank of ships subjected to the synthetic damage of shock wave and high-speed fragments. Theoretical analysis, numerical simulation and model experiments are implemented to study the synthetic effect of shock wave and high-speed fragments. The damage properties of the outside plate of the liquid tank, the response of the inner plate of liquid tank and the influence of liquid during the penetration are discussed in details. The main purpose of this study is to explore the defense mechanism of liquid tank and provide theoretical basis for practical design of liquid tank.

英文关键词： Explosive blast;Damage mechanism;High-speed Fragment;Fluid-structure interaction;Defense structure