膨胀石墨燃爆剂JWL状态方程参数拟合

许兴春; 高欣宝; 张俊坤

doi:10.11883/1001-1455(2015)01-0124-06

膨胀石墨燃爆剂JWL状态方程参数拟合

doi: 10.11883/1001-1455(2015)01-0124-06

军械工程学院, 河北石家庄 050003

详细信息

作者简介:
许兴春(1986—), 男, 博士研究生, doctxu@163.com

中图分类号: O389;TJ5
计量
- 文章访问数: 3252
- HTML全文浏览量: 400
- PDF下载量: 623
- 被引次数: 0
出版历程
- 收稿日期: 2013-06-07
- 修回日期: 2013-10-25
- 刊出日期: 2015-01-25

Parameters fitting for the JWL EOS of expanded graphite bums agent

Ordnance Engineering College, Shijiazhuang 050003, Hebei, China

摘要

摘要: 用LS-DYNA对膨胀石墨燃爆剂爆炸过程进行数值模拟时，需要提供膨胀石墨燃爆剂的JWL状态方程的参数。把凝聚炸药等熵线物态方程作为目标方程，通过差分进化法拟合得出膨胀石墨燃爆剂JWL状态方程的参数。通过圆筒实验对所求得的参数进行验证，结果表明，理论值与实验值最大误差不超过3.3%，能够满足膨胀石墨燃爆剂爆炸模拟研究的需要。
- 爆炸力学 /
- JWL状态方程 /
- LS-DYNA /
- 膨胀石墨
Abstract: The simulation of the explosion of expanded graphite bums agent requires the determination of the parameters in the JWL EOS of expanded graphite bums agent. The JWL EOS of expanded graphite bums agent are fitted through the differential evolution method taking condensed explosives isentropic line EOS as the target equation. The cylinder test results show that the maximum error between the theoretical value and experimental value is less than 3.3%, meeting the needs of the expanded graphite bums agent explosion simulation research.
- mechanics of explosion /
- JWL EOS /
- LS-DYNA /
- expanded graphite

HTML全文

图 1 几组拟合曲线与目标曲线对比

Figure 1. Comparison between fitting and objective curves

下载: 全尺寸图片幻灯片

图 2 计算模型简图

Figure 2. Diagram of model

下载: 全尺寸图片幻灯片

图 3 网格划分图

Figure 3. Diagram of meshing

下载: 全尺寸图片幻灯片

图 4 圆筒45 μs时网格变形图

Figure 4. Gridding distortion at 45 μs

下载: 全尺寸图片幻灯片

图 5 数值模拟得到的Δr-t曲线

Figure 5. Simulation curve of Δr-t

下载: 全尺寸图片幻灯片

图 6 圆筒实验原理示意图

Figure 6. Diagram of cylinder test

下载: 全尺寸图片幻灯片

图 7 实验得到的Δr-t曲线

Figure 7. Test curve of Δr-t

下载: 全尺寸图片幻灯片

表 1 几组拟合参数及其误差

Table 1. Several groups of fitting parameters and max error

数据组	A	B	R₁	R₂	ω	E_max/%
Value(a)	0.413	8.000	1.977	5.570	0.103	3.02
Value(b)	0.058	1.729	1.046	3.107	0.043	8.02
Value(c)	0.105	0.869	1.813	2.401	0.109	20.05
Value(d)	0.412	3.841	2.057	4.597	0.166	2.30

下载: 导出CSV

表 2 圆筒实验结果

Table 2. Data of cylinder test

t/μs	(R-R₀)/mm
25	0.0
30	0.0
35	0.5
40	1.0
45	2.0
50	2.5
55	3.0
60	3.5
65	4.0
70	4.5
75	5.0
80	5.5
85	6.0
90	6.6
95	7.2
100	8.5

下载: 导出CSV

参考文献(11)

[1]	乔小晶, 张同来, 任慧, 等.爆炸法制备膨胀石墨及其干扰性能[J].火炸药学报, 2003, 26(1): 70-73. http://www.cnki.com.cn/Article/CJFDTotal-BGXB200301022.htm Qiao Xiao-jing, Zhang Tong-lai, Ren Hui, et al. Preparation by explosion method and the interference function of expanded graphite[J]. Chinese Journal of Explosives & Propellants, 2003, 26(1): 70-73. http://www.cnki.com.cn/Article/CJFDTotal-BGXB200301022.htm
[2]	潘功配, 关华, 朱晨光, 等.可膨胀石墨用作抗红外/毫米波双模发烟剂的研究[J].含能材料, 2007, 15(1): 70-72. http://d.wanfangdata.com.cn/Periodical/hncl200701019 Pan Gong-pei, Guan Hua, Zhu Chen-guang, et al. Study on anti-IR/millimeter wave smoke composition with expansive graphite[J]. Chinese Journal of Energetic Materials, 2007, 15(1): 70-72. http://d.wanfangdata.com.cn/Periodical/hncl200701019
[3]	潘功配, 杨硕.烟火学[M].北京: 北京理工大学出版社, 2004.
[4]	黄辉, 王泽山, 蒋小华, 等.挤柱炸药爆轰产物JWL状态方程研究[J].弹道学报, 2007, 19(1): 45-47. http://www.cqvip.com/Main/Detail.aspx?id=24160711 Huang Hui, Wang Ze-shan, Jiang Xiao-hua, et al. Cylinder experiments and JWL EOS of detonation product for ECX[J]. Journal of Ballistics, 2007, 19(1): 45-47. http://www.cqvip.com/Main/Detail.aspx?id=24160711
[5]	于川, 李良忠, 黄毅民.含铝炸药爆轰产物JWL状态方程研究[J].爆炸与冲击, 1999, 19(3): 274-278. Yu Chuan, Li Liang-zhong, Huang Yi-min. Studies on JWL equation of state of detonation product for aluminized explosive[J]. Explosion and Shock Waves, 1999, 19(3): 274-278.
[6]	Kury J W, Hornig H C, Lee E L, et al. Metal accelaration by chemical explosives[C]//Proceedings of the 4th International Symposium on Detonation. White Oak, Maryland, 1966: 3-13.
[7]	Kury J W. Metal acceleration by chemical explosives[C]//4th Syrup(International)on Detonation. White Oak: Office of Naval Research, 1965: 3-12.
[8]	奥尔连科.爆炸物理学[M].孙承纬, 译.北京: 科学出版社, 2011.
[9]	陈智刚, 赵太勇, 侯秀成.爆炸及其终点效应[M].北京: 兵器工业出版社, 2004.
[10]	孙占峰, 李庆忠, 孙学林, 等.标准圆筒试验技术与数据处理方法研究[J].高压物理学报, 2008, 22(2): 160-166. http://www.cqvip.com/Main/Detail.aspx?id=27933760 Sun Zhan-feng, Li Qing-zhong, Sun Xue-lin, et al. Study on standard cylinder test technology and data processing method[J]. Chinese Journal of High Pressure Physics, 2008, 22(2): 160-166. http://www.cqvip.com/Main/Detail.aspx?id=27933760
[11]	陈朗, 李泽仁.激光速度干涉仪测量法在炸药圆筒试验中的应用[J].爆炸与冲击, 2001, 31(3): 229-232. http://www.cqvip.com/Main/Detail.aspx?id=5433132 Chen Lang, Li Ze-ren. The cylinder tests measured by VISAR interferometer[J]. Explosion and Shock Waves, 2001, 31(3): 229-232. http://www.cqvip.com/Main/Detail.aspx?id=5433132