双层环肋圆柱壳受多个物体撞击下的结构动响应

刘俊杰 万正权 祁恩荣

刘俊杰, 万正权, 祁恩荣. 双层环肋圆柱壳受多个物体撞击下的结构动响应[J]. 爆炸与冲击, 2016, 36(2): 210-217. doi: 10.11883/1001-1455(2016)02-0210-08
引用本文: 刘俊杰, 万正权, 祁恩荣. 双层环肋圆柱壳受多个物体撞击下的结构动响应[J]. 爆炸与冲击, 2016, 36(2): 210-217. doi: 10.11883/1001-1455(2016)02-0210-08
Liu Junjie, Wan Zhengquan, Qi Enrong. Dynamic response of double ring-stiffened cylindrical shell structure collided by multiple bodies[J]. Explosion And Shock Waves, 2016, 36(2): 210-217. doi: 10.11883/1001-1455(2016)02-0210-08
Citation: Liu Junjie, Wan Zhengquan, Qi Enrong. Dynamic response of double ring-stiffened cylindrical shell structure collided by multiple bodies[J]. Explosion And Shock Waves, 2016, 36(2): 210-217. doi: 10.11883/1001-1455(2016)02-0210-08

双层环肋圆柱壳受多个物体撞击下的结构动响应

doi: 10.11883/1001-1455(2016)02-0210-08
详细信息
    作者简介:

    刘俊杰(1978—),男,博士,高级工程师,junjie197803@163.com

  • 中图分类号: O347

Dynamic response of double ring-stiffened cylindrical shell structure collided by multiple bodies

  • 摘要: 针对双层环肋圆柱壳受到多个物体的撞击问题,采用MSC.Dytran软件对受撞过程中的结构损伤变形、撞击力变化和能量转换进行数值模拟,并与模型试验相对比后发现:双层环肋圆柱壳结构同时受多物体撞击是一个瞬态动响应过程,在巨大瞬时冲击载荷作用下,受撞区壳板会迅速超越弹性变形而产生塑性变形;多物体撞击会造成外壳板一定区域的损伤变形,撞击力会相互干扰,导致其非线性特征更明显。结果表明,双层圆柱壳的外壳能对内壳起到较好的防护作用,在外壳没被撞穿的情况下,其结构变形会吸收绝大部分的撞击动能,可以通过优化外壳的吸能效率来达到双层壳体结构物内壳防撞的目的。
  • 图  1  不同网格特征长度数值模拟结果对比

    Figure  1.  Comparison of calculation results between different element lengths

    图  2  双层环肋半圆柱壳结构和撞击物有限元模型

    Figure  2.  Finite element models of double ring-stiffened cylindrical shell structure and colliding bodies

    图  3  受撞壳体结构的等效应力分布

    Figure  3.  Distribution of von Mises stress on shell structure

    图  4  受撞壳体结构的变形分布

    Figure  4.  Distribution of deformation on shell structure

    图  5  受撞内壳等效应力分布

    Figure  5.  Distribution of von Mises stress on inner shell

    图  6  钢球撞击力时程曲线

    Figure  6.  Histories of collision force exerted by steel balls

    图  7  壳体受撞过程中能量转换时程曲线

    Figure  7.  Histories of energy conversion in collision process

    图  8  试验模型

    Figure  8.  Test model of the shell

    图  9  试验中的模型状态

    Figure  9.  The state of the model in test

    图  10  撞击力时程曲线对比

    Figure  10.  Comparison of the collision force histories

    图  11  结构变形对比

    Figure  11.  Comparison of deformations on the shell's structure

    12a  壳体损伤变形试验测量结果

    12a.  Damage deformation in test

    12b  壳体损伤变形数值模拟结果

    12b.  Damage deformation by simulation

    表  1  模型结构特征参数

    Table  1.   Parameters of the model's structural characteristics

    R1/t1 $L_{1} / \sqrt{R_{1} t_{1}}$ F1/L1t1 R2/t2 $L_{2} / \sqrt{R_{2} t_{2}}$ F2/L2t2
    363.3 4.2 0.25 153.3 1.62 0.56
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  • [1] 池建文.潜艇海上碰撞:惊险却难免[J].现代舰船, 2001(4):18-19. http://d.old.wanfangdata.com.cn/Conference/3205355
    [2] 梅志远.基于MSC Dytran的潜艇结构撞击强度分析[J].计算机辅助工程, 2006, 15(S1):71-74. http://d.old.wanfangdata.com.cn/Periodical/jsjfzgc2006z1025

    Mei Zhiyuan. Numerical analysis based on MSC Dytran collision strength of submarine structure[J]. Computer Aided Engineering, 2006, 15(S1):71-74. http://d.old.wanfangdata.com.cn/Periodical/jsjfzgc2006z1025
    [3] 梅志远, 李卓.单双壳体典型结构耐撞性模型试验研究及仿真分析[J].船舶力学, 2011, 15(11):1248-1249. doi: 10.3969/j.issn.1007-7294.2011.11.008

    Mei Zhiyuan, Li Zhuo. Experimental and numerical research for impact-resistance characteristic of double or single shell structure in water[J]. Journal of Ship Mechanics, 2011, 15(11):1248-1249. doi: 10.3969/j.issn.1007-7294.2011.11.008
    [4] 朱新阳, 梅志远, 吴梵.潜艇典型结构在撞击载荷作用下动态响应的试验研究[J].船海工程, 2009, 38(4):88-91. http://www.cnki.com.cn/Article/CJFDTOTAL-WHZC200904024.htm

    Zhu Xinyang, Mei Zhiyuan, Wu Fan. Research on dynamic response test of submarine typical structure unit's under impact load[J]. Ship & Ocean Engineering, 2009, 38(4):88-91. http://www.cnki.com.cn/Article/CJFDTOTAL-WHZC200904024.htm
    [5] Kim Y W, Lee Y S. Transient analysis of ring-stiffened composite cylindrical shells with both edges clamped[J]. Journal of Sound and Vibration, 2002, 252(1):1-17. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=4cc72cab6d6b11bdced3d0d12aec53d1
    [6] 孙清磊, 刘令, 吴梵.撞头形状对环肋圆柱壳水下碰撞特性的影响[J].船海工程, 2012, 41(4):98-101, 109. doi: 10.3963/j.issn.1671-7953.2012.04.026

    Sun Qinglei, Liu Ling, Wu Fan. Underwater collision properties of ring-stiffened cylinder effected by different shape of strikes[J]. Ship & Ocean Engineering, 2012, 41(4):98-101, 109. doi: 10.3963/j.issn.1671-7953.2012.04.026
    [7] 浦发.穿甲原理的新探索[J].弹箭与制导学报, 2000(4):1-4. doi: 10.3969/j.issn.1673-9728.2000.04.001

    Pu Fa. A new study on the theory of penetration[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2000(4):1-4. doi: 10.3969/j.issn.1673-9728.2000.04.001
    [8] Liu Junjie, Wan Zhengquan, Qi Enrong, et al. Numerical simulations of the damage process of double cylindrical shell structure subjected to an impact[J]. Journal of Ship Mechanics, 2010, 14(6):660-669. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cblx201006010
    [9] 王自力.船舶碰撞损伤机理与结构耐撞性研究[D].上海: 上海交通大学, 2000. http://www.wanfangdata.com.cn/details/detail.do?_type=degree&id=Y370337
    [10] MSC Software Corporation. MSC.Patran user's guide[M]. MacNeal-Schwendler Corporation, 1998.
    [11] 王自力, 顾永宁.船舶碰撞动力学过程的数值仿真研究[J].爆炸与冲击, 2001, 21(1):29-34. doi: 10.3321/j.issn:1001-1455.2001.01.007

    Wang Zili, Gu Yongning. Numerical simulations of ship/ship collisions[J]. Explosion and Shock Waves, 2001, 21(1):29-34. doi: 10.3321/j.issn:1001-1455.2001.01.007
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出版历程
  • 收稿日期:  2014-09-10
  • 修回日期:  2015-04-09
  • 刊出日期:  2016-03-25

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