膨胀管-凹槽板爆炸分离装置以其无污染高承载特点将应用于有效载荷连接和释放结构。其作为火工直驱的线式分离装置分离时常伴随着较大冲击，如何降低装置在解锁过程中冲击源的爆轰作用以及控制冲击的传递，是该类装置能否广泛应用的重要前提。本文运用LS-DYNA对膨胀管-凹槽板分离装置的分离过程和面内冲击波传递规律进行了仿真分析，同时，基于2种仿真方案分析的预测结果，开展了其中一种降冲方案的试验验证。结果表明，仿真分析可以有效指导试验的开展，并指出减少扁平管和连接框的碰撞面积可有效改善整个膨胀管分离过程的冲击环境。
Abstract
The Super-Zip separation device will be applied to the payload connection and release structure due to its pollution-free and high load-bearing characteristics. As a direct-drive linear separation device of the pyrotechnics, it is accompanied with large impact action in the process of separation. How to reduce the detonation effect of the impact source and control the transmission of the impact during the unlocking process is an important prerequisite for the wide application of this type of separation device. In this paper, the LS-DYNA software is used to simulate and analyze the separation process of the Super-Zip separation device and the in-plane shock wave transmission law. In addition, based on the prediction results of the two simulation schemes, the test verification of one of the shock reduction schemes is carried out. The results show that the Finite Element Analysis（FEA）can effectively guide the development of the test and it is pointed out that reducing the collision area between the flat tube and the connecting frame can effectively improve the impact environment of the whole Super-Zip separation process.
关键词
爆炸力学 /
膨胀管分离装置 /
降冲击 /
LS-DYNA
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Key words
Explosive Mechanics /
Super-Zip /
Shock Reduction /
LS-DYNA
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参考文献
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