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[1]何俊,徐立志,程春,等.弹丸转速对PELE侵彻钢筋混凝土靶横向效应的影响[J].火炸药学报,2017,40(4):81-85.[doi:10.14077/j.issn.1007-7812.2017.04.015]
 HE Jun,XU Li-zhi,CHENG Chun,et al.Effect of Projectile Rotation Rate on Lateral Effect of PELE Penetrating Reinforced Concrete Target[J].,2017,40(4):81-85.[doi:10.14077/j.issn.1007-7812.2017.04.015]
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弹丸转速对PELE侵彻钢筋混凝土靶横向效应的影响()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
40卷
期数:
2017年第4期
页码:
81-85
栏目:
出版日期:
2017-08-30

文章信息/Info

Title:
Effect of Projectile Rotation Rate on Lateral Effect of PELE Penetrating Reinforced Concrete Target
作者:
何俊 徐立志 程春 郑绍君 杜忠华 蒋洪章
1. 安徽机电职业技术学院, 安徽 芜湖 241000;
2. 南京理工大学机械工程学院, 江苏 南京 210094;
3. 黑龙江新诺机器人自动化科技有限公司, 黑龙江 哈尔滨 150060
Author(s):
HE Jun XU Li-zhi CHENG Chun ZHENG Shao-jun DU Zhong-hua JIANG Hong-zhang
1. Anhui Technical College of Mechanical and Electrical Engineering, Wuhu Anhui 241000, China;
2. School of Machinery Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
3. Heilongjiang Xinnuo Robot Automation Technolog
关键词:
钢筋混凝土靶横向效应增强型侵彻体PELE转速横向效应
Keywords:
reinforced concrete targetpenetrator with enhanced lateral effectPELErotation ratelateral effect
分类号:
TJ55;TJ413
DOI:
10.14077/j.issn.1007-7812.2017.04.015
文献标志码:
-
摘要:
为了研究弹丸转速对横向效应增强型侵彻体(PELE)侵彻钢筋混凝土靶横向效应的影响,运用ANSYS/LS-DYNA软件在着靶速度600、700和800 m/s条件下,对具有不同转速的PELE侵彻钢筋混凝土靶进行数值模拟,并通过试验方法对不同着靶条件下的仿真模型进行验证。结果表明,开孔尺寸的数值模拟结果与实验结果之间的误差小于5%,仿真模型能够准确模拟PELE侵彻钢筋混凝土靶的过程;随着转速的不断提高,损失更多的转速动能转化为钢筋混凝土靶开孔破坏所需的能量,使钢筋混凝土靶的开孔尺寸增大;在同一着靶速度下,转速从10 000 r/min提高至25 000 r/min,开孔尺寸提高了约(8±2)%。因此,在同一着靶速度下,增加弹丸转速有利于提高PELE对钢筋混凝土靶的开孔尺寸。
Abstract:
To study the effect of projectile rotation rate on the lateral effect of penetrator with enhanced lateral effects (PELE)penetrating reinforced concrete target, the numerical simulation of PELE penetrating reinforced concrete target with different rotation rates was performed under the condition of three impact target velocities of 600,700 and 800 m/s,and the simulation model under the conditions of different impact target was verified by testing method. The results show that the error of opening size between the simulation results and the experimental ones is less than 5%, showing that the simulation model can accurately simulate the process of PELE penetrating reinforced concrete target.With increasing the rotation rate, more rotation rate kinetic energy lost translates into the energy that used to break the reinforced concrete target and make the opening size of reinforced concrete target increase. Under the same impact target velocity, opening size is improved by (8±2)% when the rotation rate increases from 10 000 r/min to 25 000 r/min. Therefore, increasing projectile rotation rate is beneficial to improve the opening size of the PELE penetrating reinforced concrete target.

参考文献/References:

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相似文献/References:

[1]叶小军,杜忠华,胡传辉,等.PELE侵彻破坏钢筋混凝土靶的数值计算与试验[J].火炸药学报,2012,35(4):86.
 YE Xiao-jun,DU Zhong-hua,HU Chuan-hui,et al.Numerical Calculation and Experiment of PELE Penetrated and Broken Reinforced Concrete Targets[J].,2012,35(4):86.

备注/Memo

备注/Memo:
收稿日期:2017-03-07;改回日期:2017-04-11。
基金项目:安徽高校自然科学研究重点项目(No.KJ2015A441)
作者简介:何俊(1978-),男,副教授,从事弹药工程及撞击动力学研究。E-mail:ahjdhj@126.com
更新日期/Last Update: 2017-08-30