W-Mo-Ti-Mg体系阻抗梯度飞片无冲击驱动过程数值分析

柏劲松;沈柏强;唐蜜;罗国强;

振动与冲击 ›› 2010, Vol. 29 ›› Issue (6) : 72-75.

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振动与冲击 ›› 2010, Vol. 29 ›› Issue (6) : 72-75.
论文

W-Mo-Ti-Mg体系阻抗梯度飞片无冲击驱动过程数值分析

  • 柏劲松1;沈柏强2; 唐蜜1; 罗国强1,2
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Computational of the W-Mo-Ti-Mg Graded Impedance ImpactorComplexity Loadings and Shockless Compressions

  • Bai Jing-Songa;Shen Qiang b;Tang Mi a;Luo Guo-Qiang a, b

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摘要

对于W-Mo-Ti-Mg复合体系材料,给出了一种按指数规律变化的阻抗梯度飞片厚度计算公式,飞片厚度从高阻抗到低阻抗遵循逐渐递减规律。文中针对20层准连续性阻抗梯度飞片,在两种不同的阻抗分布情况下,给出了针对1.0mm铜样品准等熵加载过程的计算结果,同时通过在飞片末端增加几层更低阻抗材料,实现了对铜样品的无冲击驱动。

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Abstract

For the W-Mo-Ti-Mg composition, we present an exponential formula of each layer’s thickness of the graded impedance impactor, and the thickness of each layer increases with the impedance. For the 20 layers quasi-continuum graded impedance impactor, we present the computational results of complexity loading and quasi-isentropic compression of 1.0mm thickness copper sample under 2 different impedance distributions. By adding several layers of lower impedance materials at the end of the impactor, the shockless compression to the copper sample is achieved.

关键词

阻抗梯度飞片 / 复杂加载 / 气炮 / 无冲击驱动 / 数值计算

Key words

Graded impedance impactor / Complex loading / Light-gas gun / Shockless compression / Numerical computation

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柏劲松;沈柏强;唐蜜;罗国强;. W-Mo-Ti-Mg体系阻抗梯度飞片无冲击驱动过程数值分析 [J]. 振动与冲击, 2010, 29(6): 72-75
Bai Jing-Songa;Shen Qiang b;Tang Mi a;Luo Guo-Qiang a;b. Computational of the W-Mo-Ti-Mg Graded Impedance ImpactorComplexity Loadings and Shockless Compressions[J]. Journal of Vibration and Shock, 2010, 29(6): 72-75

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