水中钢板爆破水介质对装药量的影响

姜涛; 詹发民; 周方毅; 马贵义

doi:10.11883/1001-1455(2015)01-0089-05

水中钢板爆破水介质对装药量的影响

doi: 10.11883/1001-1455(2015)01-0089-05

海军潜艇学院，山东青岛 267011

详细信息

作者简介:
姜涛(1979—), 男, 博士, 讲师, 374375340@qq.com

中图分类号: O382.1
计量
- 文章访问数: 3156
- HTML全文浏览量: 388
- PDF下载量: 411
- 被引次数: 0
出版历程
- 收稿日期: 2013-06-28
- 修回日期: 2013-11-27
- 刊出日期: 2015-01-25

Effects of water medium on charge mass for demolishing steel plate underwater explosion

Navy Submarine Academy, Qingdao 267011, Shandong, China

摘要

摘要: 为分析水介质对水中钢板爆破装药量的影响，理论推导了钢板背衬水介质条件下，钢板爆破最小装药量与空气中钢板爆破最小装药量的倍数关系：最小倍数关系为3.76。数值计算了钢板背衬空气介质和背衬水介质情形下钢板爆破的最小装药量，其倍数关系在3.5左右，与理论结果相近，表明钢板背衬水介质或空气介质是决定装药量大小的关键因素。数值计算了装药在空气介质中及水介质中钢板爆破爆轰产物对钢板的冲量大小，结果接近，表明水介质对炸药爆轰产物的约束作用是影响水中钢板装药量的次要因素。
- 爆炸力学 /
- 水介质 /
- 水下爆破 /
- 装药量 /
- 接触爆破
Abstract: To study the effect of water on charge mass for demolishing steel plate, the relationship of charge mass between steel plate backing on air and backing on water is analyzed. The results show that the charge mass for backing on water is 3.68 times the charge mass for backing on air. The charge mass is calculated with FEM method for explosions with steel plate backing on air and water. The results show that the charge mass for steel plate backing on air is 3.5 times the charge mass for steel plate backing on water, which is accordant with theoretical analysis. So the medium that steel plate backs on is the key factor for determing charge mass of cutting steel plate. The impulses on steel plate are almost equal for backing on air and backing on water, which indicates that the water constraining force on the detonation products can not afeect the charge mass much.
- mechanics of explosion /
- water medium /
- underwater explosion /
- charge mass /
- contact explosion

HTML全文

图 1 水获得运动速度的范围

Figure 1. Range of water movement

下载: 全尺寸图片幻灯片

图 2 有限元模型及测试点设置

Figure 2. FEM model and gauge position

下载: 全尺寸图片幻灯片

图 3 空气介质中爆破钢板实验及爆破效果

Figure 3. Setup and result of demolish steel plate experiment

下载: 全尺寸图片幻灯片

图 4 空气介质中钢板爆破数值模拟结果

Figure 4. Numerical simulation result of demolish steel plate

下载: 全尺寸图片幻灯片

图 5 钢板背衬水介质和背衬空气介质最小装药量及钢板爆破结果

Figure 5. Results from FEM simulation for two models with steals backing water and air respectively

下载: 全尺寸图片幻灯片

图 6 背衬水介质钢板破片速度

Figure 6. Velocities of steel fragment backing on water

下载: 全尺寸图片幻灯片

图 7 背衬空气介质钢板破片速度

Figure 7. Velocities of steel fragment backing on air

下载: 全尺寸图片幻灯片

图 8 测试点冲量时间历程曲线

Figure 8. Impulse curves at different measuring points

下载: 全尺寸图片幻灯片

参考文献(7)

[1]	齐世福.炸药及爆炸作用[M].南京: 解放军理工大学出版社, 2004.
[2]	叶序双.爆炸作用基础[M].南京: 解放军理工大学出版社, 2001.
[3]	陈刊, 齐世福, 冯伟涛.沉船清障中矩形截面直列装药作用研究[J].中国水运, 2011, 11(2): 133-134. http://d.wanfangdata.com.cn/Periodical/zgsy-xby201102063
[4]	Wood S L. Cavitation effects on a ship-like box structure subjected to an underwater explosion[D]. USA: Naval Postgraduate School, 1998. https://core.ac.uk/download/pdf/36701624.pdf
[5]	姜涛, 由文立, 张可玉, 等.水中爆炸表面空穴的理论研究[J].爆炸与冲击, 2011, 31(1): 19-24. http://www.cnki.com.cn/Article/CJFDTotal-BZCJ201101005.htm Jiang Tao, You Wen-li, Zhang Ke-yu, et al. Study on the thoery of bulk cavitation from underwater explosion[J]. Explosion and Shock Waves, 2011, 31(1): 19-24. http://www.cnki.com.cn/Article/CJFDTotal-BZCJ201101005.htm
[6]	Autodyn Theory Manual Version4.3[Z].Century Dynamic Corporation.USA, 2005
[7]	Ansys AutoDyn help Manual[Z]. Century Dynamic Corporation. USA, 2005.