Evaluation of the average specific kinetic energy of stun grenade fragments by Monte Carlo subdivision projection simulation

被引：1
作者：
Liu X. [1 ,2 ]
Zhan R. [1 ]
Ouyang D. [3 ]
Li Y. [1 ,2 ]
机构：
[1] Equipment Management and Guarantee Institute, Engineering University of PAP, Xi'an
[2] Key Laboratory of Marine Intelligent Equipment and Systems Ministry of Education, Shanghai Jiaotong University, Shanghai
[3] College of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an
来源：
Guofang Keji Daxue Xuebao/Journal of National University of Defense Technology | 2021年 / 43卷 / 05期
关键词：
Average specific kinetic energy; Dispersion model; Monte Carlo subdivision projection simulation; Natural fragment; Semi-prefabricated fragment; Shell breaking;
D O I：
10.11887/j.cn.202105013
中图分类号：
学科分类号：
摘要：
In order to evaluate the lethality and injury radius of the stun grenade fragments, and to reduce its average specific kinetic energy, the calculation model of the average specific kinetic energy of fragments was established, based on the Monte Carlo subdivision projection simulation method. With co-simulation method of LS-DYNA and self-programming, the calculation models of average specific kinetic energy of natural fragments and semi-prefabricated fragments of stun grenade were simulated and compared separately. The mass distribution, initial velocity, vertical target distribution, average specific kinetic energy threshold and safety radius of the whole fragments in the whole-time domain were obtained. The results show that the mass distribution and initial velocity threshold of semi-prefabricated fragments are lower and more concentrated than that of the natural fragments under the same charge parameters; within the range of less than 2.5 m, the average specific kinetic energy threshold of semi-prefabricated fragments is lower than that of the natural fragments; within the range of more than 2.5 m, the average specific kinetic energy threshold of semi-prefabricated fragments is higher than that of the natural fragments. Compared with the natural fragments, the semi-prefabricated fragments can significantly reduce the lethality radius, but cannot significantly improve the safety radius. © 2021, NUDT Press. All right reserved.
引用
收藏
页码：107 / 116
页数：9
相关论文
共 15 条
[1]  
GUO Sanxue, Research on the development of non-lethal weapons, (2016)
[2]  
MA Yongzhong, LIU Jiakai, Design and test of safety type strong light detonation, Journal of Weapon Equipment Engineering, 41, 9, pp. 1-4, (2020)
[3]  
YANG Shuai, ZHAO Taiyong, ZHANG Xiaodong, Et al., Research on the damage effectiveness of the relevant fields of the warhead, Explosive Materials, 49, 2, pp. 1-6, (2020)
[4]  
WANG X Y, KONG X S, ZHENG C, Et al., Effect of initiation manners on the scattering characteristics of semi-preformed fragment warhead, Defence Technology, 14, 5, pp. 578-584, (2018)
[5]  
ZHAO Jin, FU Jianping, CHEN Zhigang, Et al., Analysis of forming and spreading of pre-formed fragment warhead, Journal of Ordnance Equipment Engineering, 40, 12, pp. 62-66, (2019)
[6]  
FELIX D, COLWILL I, STIPIDIS E., Real-time calculation of fragment velocity for cylindrical warheads, Defence Technology, 15, 3, pp. 264-271, (2019)
[7]  
LI Yuan, ZHAO Qian, XIONG Shihui, Et al., Numerical simulation of the power characteristics of a heterogeneous prism warhead, Chinese Journal of Energetic Materials, 27, 2, pp. 97-103, (2019)
[8]  
LI Xiangyu, LI Zhenduo, LIANG Minzu, Dispersion properties and rapid calculation of fragment force field of D-shaped fragmentation warhead, Explosion and Shock Waves, 39, 4, pp. 137-144, (2019)
[9]  
DU Ning, DING Li, LU Jiandong, Et al., Study on fragments formation of groove shell with different hardness under explosively loading, Journal of Ballistics, 31, 2, pp. 80-86, (2019)
[10]  
CHENG Chun, DU Zhonghua, CHEN Xi, Et al., Numerical simulation for impact fragmentation of jacket grooved PELE, Journal of Ballistics, 31, 3, pp. 92-96, (2019)
12