双破片侵彻耦合载荷对容器壁面的毁伤研究

doi:10.3969/j.issn.1000-1093.2019.01.019

兵工学报 ›› 2019, Vol. 40 ›› Issue (1): 159-170.doi: 10.3969/j.issn.1000-1093.2019.01.019

双破片侵彻耦合载荷对容器壁面的毁伤研究

蓝肖颖，李向东，周兰伟，纪杨子燚

（南京理工大学机械工程学院, 江苏南京 210094）

收稿日期:2018-05-23 修回日期:2018-05-23 上线日期:2019-03-12
作者简介:蓝肖颖（1993—），女，硕士研究生。E-mail：shanicelan@gmail.com
基金资助:
国家自然科学基金项目（11572159）

Research on Damage of Vessel Walls Caused by Double Fragments Penetration and Coupling Load

LAN Xiaoying， LI Xiangdong， ZHOU Lanwei， JIYANG Ziyi

(School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China)

Received:2018-05-23 Revised:2018-05-23 Online:2019-03-12

摘要/Abstract

摘要： 为研究双破片撞击充液容器引起的液压水锤现象对壁面的毁伤，利用有限元分析软件ANSYS/LS-DYNA对该过程进行数值模拟，并进行试验验证。分析破片撞击动能、间距、作用时间间隔对容器壁面毁伤的影响。结果表明：破片撞击充液容器的动能越大，壁面变形越大；当壁面出现裂纹时，变形量增长速度加快；破片撞击点间距对容器前壁面的变形影响较小，对后壁面影响较大；破片撞击点间距越小，壁面变形量越大；壁面变形量随着两破片撞击时间间隔的增大而减小，但时间间隔增大至0.10 ms时对壁面变形将无影响。

关键词: 充液容器, 液压水锤, 双破片, 壁面毁伤, 数值模拟

Abstract: To study the damage of front and rear walls caused by double fragments impacting a liquid-filled vessel, ANSYS/LS-DYNA software is used to simulate and verify the damage process through experiments. The effects of kinetic energy, spacing and acting time interval of fragments on the damage of the walls are analyzed. The results show that the deformation of the walls increases with the increase in fragment kinetic energy, and when the wall cracks, the deformation changes faster. Fragment impact point spacing has less influence on the fore-wall and has a greater influence on the rear-wall deformation; and the smaller the fragment spacing is, the greater the wall deformation is. The wall deformation decreases with the increase in the impacting time interval of double fragments; and when the tine interval increases to 0.10 ms, it has no influence on the wall deformation. Key

Key words: fluid-filledvessel, hydrodynamicram, doublefragments, walldamage, numericalsimulation

中图分类号:

TJ012.4

蓝肖颖，李向东，周兰伟，纪杨子燚. 双破片侵彻耦合载荷对容器壁面的毁伤研究[J]. 兵工学报, 2019, 40(1): 159-170.

LAN Xiaoying， LI Xiangdong， ZHOU Lanwei， JIYANG Ziyi. Research on Damage of Vessel Walls Caused by Double Fragments Penetration and Coupling Load[J]. Acta Armamentarii, 2019, 40(1): 159-170.

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双破片侵彻耦合载荷对容器壁面的毁伤研究

Research on Damage of Vessel Walls Caused by Double Fragments Penetration and Coupling Load

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