有机玻璃的几何形状对爆炸切割影响的研究

王志华; 李志强; 任会兰; 赵隆茂

doi:10.11858/gywlxb.2010.01.008

有机玻璃的几何形状对爆炸切割影响的研究

doi: 10.11858/gywlxb.2010.01.008

1.
北京理工大学爆炸科学与技术国家重点实验室，北京 100081；
2.
太原理工大学应用力学与生物医学工程研究所，山西太原 030024

详细信息

通讯作者:
任会兰

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出版历程
- 收稿日期: 2009-05-20
- 修回日期: 2009-08-26
- 发布日期: 2010-02-15

Finite Element Analysis on the Influence of PMMA Geometry on Explosion Cutting

1.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;
2.
Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China

More Information

Corresponding author: REN Hui-Lan

摘要

摘要: 为了改善现有的航空弹射救生系统，提高飞行员安全逃生的成功率，提出了微爆索切割技术在航空穿盖弹射救生系统中的应用。采用非线性动力显式程序LS-DYNA3D，对有机玻璃平板元件、航空舱盖的微爆索切割过程进行了数值计算分析，得到了不同装药量下有机玻璃平板元件、航空舱盖的切割深度，对比了有机玻璃的几何形状对微爆索切割深度的影响。模拟结果表明：有机玻璃平板切割实验对航空舱盖切割实验具有一定的指导意义，研究结果也可为微爆索线性切割航空舱盖的实验设计提供依据。
- 微爆索切割 /
- 层裂 /
- 有机玻璃 /
- 有限元分析
Abstract: In order to improve the present aviation ejection lifesaving system and enhance success possibility of safe escape, the application of Miniature Detonating Cord (MDC) on the aviation ejection-escape- system is proposed. The explosion cutting process of plexiglass (PMMA) plate and Canopy by MDC is simulated employing nonlinear dynamic explicit program LS-DYNA3D. The variation of cutting depth with charge quantities is obtained, which agrees well with the experimental result. Simulation result shows that the geometry of PMMA has slight influence on the cutting effect. This study may provide the powerful foundation for the design of the aviation ejection lifesaving system.
- micro detonation cord (MDC) cutting /
- spallation /
- plexiglass /
- numerical simulation

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参考文献(15)

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