冲击波效应对舰船上下舱毁伤的数值模拟研究

doi:10.16182/j.issn1004731x.joss.201812036

系统仿真学报 ›› 2018, Vol. 30 ›› Issue (12): 4778-4785.doi: 10.16182/j.issn1004731x.joss.201812036

冲击波效应对舰船上下舱毁伤的数值模拟研究

苗润¹, 王伟力², 刘宏杰¹, 吴世永³, 曾亮¹

1.海军航空大学岸防兵学院,山东烟台 264001;
2. 海军工程大学兵器工程学院, 湖北武汉 430033;
3. 海军航空大学基础学院,山东烟台 264001

收稿日期:2018-05-24 修回日期:2018-07-06 出版日期:2018-12-10 发布日期:2019-01-03
作者简介:苗润(1989-),男,黑龙江哈尔滨,博士生,研究方向为舰船目标易损性;王伟力(1962-),男,山东烟台,博士,教授,博导,研究方向为海军武器战斗部设计; 刘宏杰(1993-),男,甘肃临洮,硕士生,研究方向为目标毁伤与终点效应。

Numerical Simulation of Shock Wave Effect on Damaged Upper and Lower Adjacent Structures of Ships

Miao Run¹, Wang Weili², Liu Hongjie¹, Wu Shiyong³, Zeng Liang¹

1.College of Coast Defence Arm, Naval Aeronautical University, Yantai 264001, China;
2. College of Ordnance Engineering, Naval University of Engineering, Wuhan 430033, China;
3.College of Basic Knowledge, Naval Aeronautical University, Yantai 264001, China

Received:2018-05-24 Revised:2018-07-06 Online:2018-12-10 Published:2019-01-03

摘要/Abstract

摘要： 针对冲击波对小型舰船上下邻舱结构的毁伤效应展开研究,采用LS-DYNA有限元分析软件,分析舱室在动爆和静爆时上下邻舱结构的毁伤形式,计算不同装药运动速度下舱室的破坏情况。结果表明:动爆时,舱内冲击波流场与静爆时有较大差异,导致舱壁破坏模式不同;炸药在下舱内爆时,上舱壁受到下舱顶板变形产生挤压,顶板处出现大变形;动爆虽然增加了速度正方向舱壁破坏程度,但加快了泄压速度,导致舱内准静态压力下降,其速度负方向损伤程度降低,总体来看,不利于舰船舱室的毁伤。

关键词: 冲击波, 毁伤效应, 组合舱室, 动态起爆

Abstract: The damage effect of shock wave on the upper and lower adjacent cabin structure of small warship is studied. LS-DYNA finite element analysis software is used. Damage modes of upper and lower adjacent cabin structures under dynamic and static explosion are analyzed. Cabin damage under different charging speeds is calculated. The results show that in the dynamic explosion state, there is a big difference between the shock wave field and the static explosion, which causes different modes of bulkhead damage. When the explosive happens in the lower cabin, the upper cabin bulkhead is extruded by the deformation of the roof of the lower cabin, resulting in large deformation in roof. Although the dynamic explosion can cause more serious damage to the bulkhead in the direction of moving speed, the pressure relief speed is accelerated, the quasi static pressure in the cabin decreases, and the damage degree in the negative direction of the motion is reduced. In general, it is not conducive to the damage of the ship cabin.

Key words: shock, damage effect, combined cabin, dynamic explosion

中图分类号:

U663.2

苗润, 王伟力, 刘宏杰, 吴世永, 曾亮. 冲击波效应对舰船上下舱毁伤的数值模拟研究[J]. 系统仿真学报, 2018, 30(12): 4778-4785.

Miao Run, Wang Weili, Liu Hongjie, Wu Shiyong, Zeng Liang. Numerical Simulation of Shock Wave Effect on Damaged Upper and Lower Adjacent Structures of Ships[J]. Journal of System Simulation, 2018, 30(12): 4778-4785.

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冲击波效应对舰船上下舱毁伤的数值模拟研究

Numerical Simulation of Shock Wave Effect on Damaged Upper and Lower Adjacent Structures of Ships

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