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弹箭与制导学报 >

2021 , Vol. 41 >Issue 3: 115 - 118

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.03.025

尾翼EFP成型及气动的数值模拟

  • 丁丰 1, 2 ,
  • 赵太勇 2 ,
  • 杨宝良 3 ,
  • 付建平 2 ,
  • 印立魁 2 ,
  • 陈智刚 2 ,
  • 王维占 2
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  • 1 中北大学机电工程学院,太原 030051
  • 2 中北大学地下目标毁伤技术国防重点学科实验室,太原 030051
  • 3 西安现代控制技术研究所,西安 710065

丁丰(1996— ),男,四川平昌人,硕士研究生,研究方向:弹药工程与毁伤威力。

收稿日期: 2020-09-01

  网络出版日期: 2025-02-20

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Numerical Simulation of Fin EFP Forming and Aerodynamics

  • DING Feng 1, 2 ,
  • ZHAO Taiyong 2 ,
  • YANG Baoliang 3 ,
  • FU Jianping 2 ,
  • YIN Likui 2 ,
  • CHEN Zhigang 2 ,
  • WANG Weizhan 2
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  • 1 College of Mechatronics Engineering, North University of China, Taiyuan 030051, China
  • 2 National Defense Key Laboratory of Underground Damage Technology,North University of China, Taiyuan 030051, China
  • 3 Xi’an Modern Control Technology Research Institute, Xi’an 710065, China

Received date: 2020-09-01

  Online published: 2025-02-20

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摘要

为了研究尾翼EFP的成型及飞行过程中的气动特性,用LS-DYNA模拟EFP的成形,将获得的EFP通过UG软件实现外形数据的传递。用Fluent软件进行气动分析,得到EFP在不同起爆半径,不同攻角下的阻力系数、升力系数、稳定储备量等气动参数。结果表明起爆半径影响EFP的长径比和速度,继而影响其升力系数,阻力系数,静稳定储备量,且起爆半径在0.2D~0.3D时更有利于发挥EFP的毁伤效应。

关键词： 尾翼EFP; 气动特性; 多点起爆; 数值模拟

本文引用格式

丁丰 , 赵太勇 , 杨宝良 , 付建平 , 印立魁 , 陈智刚 , 王维占 . 尾翼EFP成型及气动的数值模拟[J]. 弹箭与制导学报, 2021 , 41(3) : 115 -118 . DOI: 10.15892/j.cnki.djzdxb.2021.03.025

Abstract

In order to study the formation of the Fin EFP and the aerodynamic characteristics during flight, LS-DYNA is used to simulate the formation process of the Fin EFP, and the FIin EFP will be obtained through UG software to realize the transmission of the shape data. The aerodynamic analysis is carried out with the fluid mechanics calculation software Fluent, and the aerodynamic parameters such as the drag coefficient, the lift coefficient and the stable reserve amount of the warhead at different detonation radii and different angles of attack are obtained. The results show that the detonation radius affects the length-diameter ratio and speed of the EFP, and then affects its lift coefficient, drag coefficient, and static stability reserve. Through comprehensive analysis, it is found that when the detonation radius is between 0.2D and 0.3D, it is more conducive to exert the damage effect of EFP.

Key words： EFP with fins; aerodynamic characteristics; multi-point initiation; numerical simulation

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参考文献

原文顺序 | 文献年度倒序 | 文中引用次数倒序
[1]
LI W B, WANG X M, LI W B. The effect of annular multi-point initiation on the formation and penetration of an explosively formed penetrator[J]. International Journal of Impact Engineering, 2009, 37(4): 414-424.

[2]
BERNER C, FLEEK V, WAKEDN D. Aerodynamic predictions of optimized explosively formed penetrators[C]//International Ballistics Society. Proceedings of the 17th International Symposium on Ballistics. Orlando: IBS, 1998: 108-116.

[3]
RONDOT F, BERNER C. Performance of aerodynamically optimized EFP simulations[C]//International Ballistics Society.Proceedings of the 17th International Symposium on Ballistics. Orlando: IBS, 1998: 81-88.

[4]
LIU J Q, GU W B, LU M, et al. Formation of explosively formed penetrator with fins and its flight characteristics[J]. Defence Technology, 2014, 10(2): 119-123.

DOI

[5]
任芮池. 双层药型罩EFP气动及飞行特性研究[D]. 北京: 北京理工大学, 2016.

[6]
门建兵, 蒋建伟, 万丽珍. 带尾翼EFP形成的三维数值模拟研究[J]. 北京理工大学学报, 2002, 22(2):166-168.

[7]
张孝中, 赵太勇, 陈智刚, 等. 尾翼型EFP形成的数值模拟研究[J]. 弹箭与制导学报, 2017, 37(4):47-50.

[8]
龙源, 刘健峰, 纪冲, 等. 多点起爆对双层药型罩爆炸成型弹丸成型及侵彻特性的数值模拟研究[J]. 兵工学报, 2016, 37(12):2226-2234.

DOI

[9]
刘健峰, 龙源, 纪冲, 等. 含偏心起爆对EFP战斗部飞行特性的影响[J]. 爆炸与冲击, 2015, 35(3):335-342.

[10]
时党勇, 张庆明, 夏长富, 等. 非对称外壳形成倾斜尾翼EFP的数值模拟[J]. 火工品, 2010(4):17-20.

[11]
唐平江, 顾文彬, 罗智伟. 变壁厚壳体对形成带尾翼EFP的影响[J]. 四川兵工学报, 2009, 30(1):34-36.

[12]
沈慧铭. 多点起爆方式作用机理及其在战斗部中的应用研究[D]. 南京: 南京理工大学,2018:15-28.

[13]
陆鸣, 井志胜, 张瑞平, 等. 四点起爆形成带尾翼EFP的试验研究[J]. 弹箭与制导学报, 2009, 29(1):128-129.

[14]
李成兵, 沈兆武, 裴明敬. 三点爆轰机理与EFP尾翼成型研究[J]. 含能材料, 2007(1):23-28.

[15]
李惠明, 陈智刚, 侯秀成, 等. 阶梯式旋转EFP成形机理的数值研究[J]. 弹箭与制导学报, 2010, 30(1):115-118.

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