摘要
基于ANSYS/LS-DYNA建立了水下垂直发射装置头罩外层内侧内压对头罩开裂过程及冲击力影响的有限元模型,分别对有内压和无内压进行求解计算,利用后处理软件LS-PREPOST对计算结果进行对比分析。结果表明,在弹头出筒过程中,有内压和无内压工况下弹头与缓冲层之间冲击力的最大值分别为1 186 N和1 205 N,弹头与头罩外层之间冲击力的最大值分别为108 N和110 N,头罩外层内侧的均布内压对冲击力的影响很小。
A finite element model of the underwater vertical launching device, considering the influence of the inner pressure of the outer layer of the underwater vertical launching hood on the cracking process and impact force of the hood was established based on ANSYS/LS-DYNA. The internal pressure and no internal pressure was solved separately, and the calculation results were compared and analyzed by post-processing software LS-PREPOST. The results show that the maximum impact force between the warhead and the buffer layer under internal pressure and no internal pressure conditions is 1 186 N and 1 205 N respectively during the ejection of the warhead, and the maximum impact force between the warhead and the outer layer of the hood is 108 N and 110 N respectively. The uniform internal pressure on the inner side of the outer layer of the hood has little effect on the impact force.
作者
陆宇
杨洋
赵铮
LU Yu;YANG Yang;ZHAO Zheng(713 Research Institute of China Shipbuilding Industry Corporation,Henan Key Laboratory of Underwater Intelligence Equipment,Zhengzhou 450015,China;College of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《兵器装备工程学报》
CAS
北大核心
2019年第2期19-21,共3页
Journal of Ordnance Equipment Engineering
基金
国家自然科学基金项目(11302106)
关键词
水下垂直发射
冲击力
LS-DYNA
内压
数值仿真
underwater vertical launch
impact force
LS-DYNA
internal pressure
numerical simulation
