| 炸药水中爆炸能量输出结构的数值模拟 |
| |
| 引用本文： | 史锐,徐更光,徐军培,刘科种.炸药水中爆炸能量输出结构的数值模拟[J].含能材料,2009,17(2):147-151. |
| |
| 作者姓名： | 史锐 徐更光 徐军培 刘科种 |
| |
| 作者单位： | 北京理工大学爆炸科学技术国家重点实验室,北京,100081 |
| |
| 基金项目： | 国家重点基础研究发展规划(973计划) |
| |
| 摘 要： | 介绍了理想炸药和含铝炸药水中爆炸的能量输出模型,并采用AUTODYN软件,对TNT和PBXW-115水中爆炸远场的冲击波形进行了求解.计算出了冲击波峰值压力、衰减时间常数、冲量、能流密度和冲击波能等参数,并将计算结果与实验数据进行了对比.在不可压缩流体理论的假设下,推导出了水中爆炸一维气泡脉动方程.把脉动方程同爆轰产物的状态方程相结合,计算出1 kg TNT和PBXW-115水中爆炸气泡脉动周期分别为0.213 s和0.283 s,二者的气泡能分别为1.88 MJ·kg-1和4.41 MJ·kg-1,与实验结果吻合较好.
|
| 关 键 词： | 爆炸力学 水中爆炸 能量输出 冲击波 气泡脉动 |
| 收稿时间： | 7/7/2008 12:00:00 AM |
| 修稿时间： | 2008/10/9 0:00:00 |
Numerical Simulation of Energy Output Structure for the Underwater Explosion |
| |
| SHI Rui,XU Geng-guang,XU Jun-pei and LIU Ke-zhong.Numerical Simulation of Energy Output Structure for the Underwater Explosion[J].Chinese Journal of Energetic Materials,2009,17(2):147-151. |
| |
| Authors: | SHI Rui XU Geng-guang XU Jun-pei and LIU Ke-zhong |
| |
| Affiliation: | State Key Laboratory of Explosion Science and Technology;Beijing Institute of Technology;Beijing 100081;China |
| |
| Abstract: | Energy output models for the ideal explosives and aluminized explosives were introduced.These models were used to calculate far-field UNDEX of TNT and PBXW-115 with AUTODYN software.Performance parameters such as peak pressure,time constant,impulse,energy flux density and shock wave energy were calculated.These parameters were compared with experimental data.The dynamic model of high pressure gas bubble in uncompressible liquid was achieved.The dynamic equations and JWL EOS(Equations of State) of the detona... |
| |
| Keywords: | explosion mechanics underwater explosion energy output shock wave bubble oscillation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《含能材料》浏览原始摘要信息 |
|
点击此处可从《含能材料》下载全文 |
