水下接触爆炸载荷作用下舰船多舱防护结构毁伤效应研究  

Research on damage of warship multicamerate defense structure subjected to underwater contact explosion load

作　　者：尹群[1] 徐成悦 沈中祥 王文庆 YIN Qun;XU Cheng-yue;SHEN Zhong-xiang;WANG Wen-qing(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212000,China;School of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang 212000,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212100 [2]江苏科技大学土木工程与建筑学院,江苏镇江212100

出　　处：《舰船科学技术》2022年第15期1-5,共5页Ship Science and Technology

基　　金：江苏省高等学校自然科学研究面上项目(20KJB560016)江苏省博士后科研资助计划资助项目(2021K562C)。

摘　　要：针对舰船多舱防护结构,对其在水下接触爆炸载荷作用下的毁伤效应进行研究。基于流固耦合法模拟分析了不同炸药量、不同爆距、不同爆点作用下膨胀舱结构的动态响应和吸能特性。研究结果表明:炸药量影响结构的损伤结果和吸能结果,炸药量越大,损伤越大,总吸能变高,但外板吸能占比变低;爆距影响结构的破坏形式和吸能结果,爆距越大,破坏越小,总吸能变低,但外板吸能占比变高;结构破坏形式和吸能占比也受到爆炸位置的影响。A study about the damage effect of multicamerate defense structure under underwater contact explosion load is conducted.The dynamic response and energy absorption characteristics of the expansion chamber structure under the action of different explosive amount,different explosion distance and different explosion point were analyzed and compared by using the fluid-solid coupling method with finite element software.The results show that the amount of explosive affects the damage result and energy absorption result of the structure.The higher the amount of explosive is,the greater the damage is,the higher the total energy absorption becomes,but the energy absorption ratio of the outer plate decreases.The larger the explosion distance is,the smaller the damage is,the lower the total energy absorption is,but the higher the energy absorption ratio of the outer plate is.The structure failure mode and energy absorption ratio are also affected by the explosion location.

关 键 词：接触爆炸 多舱防护结构 动态响应 吸能特性 流固耦合 

分 类 号：U661.43[交通运输工程—船舶及航道工程]