以激光辐照圆柱形金属/炸药结构为研究背景，通过建立热传导的有限元方程得到温度场数值解，分析材料属性对温度场及炸药热爆炸的影响。结果表明：金属材料热导率越大，比热容越小，则壳体表面温度和炸药温度越高，越有利于炸药的热起爆；隔热层的存在阻止了能量沿激光辐照轴线的传导，减缓炸药的温升，不利于炸药的热起爆。
The influence of material properties on temperature field and thermal explosion of explosive was analyzed with the background of laser irradiating column metal/explosive structure. The finite?element calculating models were established. It is shown that the temperatures of outer surface and explosive are higher when the thermal conductivity of metal material is higher and the specific heat capacity is smaller,the explosion of explosive becomes easier. The insulation prevents heat transfer along the axes of laser irradiating,slows down temperature rising. Because of insulation,the thermal explosion of explosive becomes more difficult.
参考文献
| [1] | Boley C D;Rubenchik A M .Simulations of target interactions with pulsed high energy solid state lasers UCRL-CONF-204087[R].,2004. |
| [2] | Boley C D;Rubenchik A M .Modeling antimortar lethality by a solid - state heat - capacity laser UCRL - CONF -209983[R].,2005. |
| [3] | Boley C D;Fochs S;Parker J et al.A directed energy system for defeat of improvised explosive devices and landmines UCRL-PROC-220154[R].,2006. |
| [4] | 焦路光 .激光对金属/炸药结构的辐照效应[D].国防科学技术大学,2008. |
| [5] | 焦路光,赵国民.激光辐照下金属/炸药结构三维温度场的数值模拟[J].红外与激光工程,2011(09):1715-1719. |
| [6] | 焦路光,赵国民,陈敏孙.激光辐照下金属圆板温升的数值模拟研究[J].激光杂志,2010(01):25-27. |
| [7] | 袁红,谭福利,王伟平,孙承纬.连续和重复频率激光对旋转壳体加热效率的数值模拟[J].强激光与粒子束,2006(12):1975-1978. |
| [8] | 袁红;王伟平;谭福利.连续和重复频率激光对旋转壳体加热效率比较的数值模拟[J].高能量密度物理,2006(04):153-156. |
| [9] | Holman J P.Heat transfer[M].McGraw - Hill Companies,2010:2-5. |
| [10] | 林浩山 .激光辐照内含炸药的金属圆柱壳体升温过程的数值模拟[D].国防科学技术大学,2002. |
| [11] | 工程材料实用手册编写委员会.工程材料实用手册[M].北京:中国标准出版社,1989:57. |
| [12] | 楚士晋.炸药热分析[M].北京:科学出版社,1994:286. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%