点式火工分离装置冲击载荷作用机制的数值模拟研究

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (2) : 9-13.

论文

点式火工分离装置冲击载荷作用机制的数值模拟研究

王军评，毛勇建，黄含军

作者信息 +

Study on Impulsively loading Mechanism of Point Pyrotechnic Separation Device by Numerical Simulation

Wang Junping, Mao Yongjian, Huang Hanjun

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文章历史 +

摘要

为定量分析点式火工分离装置冲击载荷作用机制，以典型爆炸螺栓连接结构为对象，分别建立了爆炸过程、应变能释放过程、撞击过程的数值计算模型，分析了分离过程中三种不同的物理过程及其诱发响应的机制，讨论了不同阶段不同区域内的结构响应特征。得到的结果符合相关标准描述的一般规律。文章首次从定量角度研究了分离过程中三种机制对响应的贡献及其特征，计算结果为今后相关产品的设计、试验与评估提供了参考，也为爆炸分离冲击载荷与响应机制认识提供了一种可行的数值分析方法。

Abstract

In order to quantitatively understand impulsively loading mechanism of point pyrotechnic separation device, the finite element models of three processes, including explosion, strain energy release and impact, were separately built. The three different physical processes and the induced responses were investigated, and characteristics of the structural responses in different stages and fields were discussed. The simulation results agree well with the general conception described in related standards. This paper, for the first time, quantitatively studies the contribution and characteristics of the structural responses induced by the three impulsively loads. The results provide references for design, testing and evaluation of corresponding equipments. Also, this paper provides a feasible numerical simulation method for research the mechanism of the impulsive loadings and the induced structural responses.

导出引用

王军评;毛勇建;黄含军. 点式火工分离装置冲击载荷作用机制的数值模拟研究[J]. 振动与冲击, 2013, 32(2): 9-13

Wang Junping;Mao Yongjian;Huang Hanjun. Study on Impulsively loading Mechanism of Point Pyrotechnic Separation Device by Numerical Simulation[J]. Journal of Vibration and Shock, 2013, 32(2): 9-13