小尺寸装药冲击过载理论分析与仿真

徐文峥;王晶禹;李计林;黄浩

振动与冲击 ›› 2011, Vol. 30 ›› Issue (7) : 96-100.

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PDF(1615 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (7) : 96-100.
论文

小尺寸装药冲击过载理论分析与仿真

  • 徐文峥1,2; 王晶禹1; 李计林1; 黄浩3
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Theory and Simulation Analysis for Penetration Overload on A Small Size Charge

  • XU Wen-zheng1,2; WANG Jing-yu1; LI Ji-lin1; HUANG Hao3
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摘要

研究了弹载小尺寸装药侵彻混凝土靶板的冲击力学特性,将装药置于非惯性系中,其绝对加速度是牵连加速度与相对加速度的矢量和。利用应力波理论建立了小尺寸装药的相对过载方程,得到了装药的过载表达式,分析了装药相对过载与弹体相对过载的关系。对弹载装药侵彻混凝土靶板进行了仿真计算,得到了与理论分析一致的结果。为小型装药的侵彻过载特性评估提供了理论参考和分析方法。

Abstract

The impact characteristic of a small size charge was carried by projectile penetrating into concrete target was studied. In theory analysis model, small size charge was set in a non-inertia coordinate system.The absolute acceleration of charge was the vector sum of convected acceleration and relative acceleration. Based on stress wave theory, a relative acceleration calculation model of small size charge was presented in which the consistency condition in front of stress wave was utilized. The formula of penetration acceleration of the charge was derived. The relationship of charge relative acceleration and projectile mass points that contact with charge was carried out. The numerical simulation of a small size charge set in a projectile into concrete target was performed. The good agreement of analytical and numerical results was in general obtained. Theoretic reference and analytical methods were provided for deceleration characteristic evaluation of small size charges.

关键词

冲击 / 过载 / 小尺寸装药 / 应力波

Key words

impact / deceleration / small size charge / stress wave

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导出引用
徐文峥;王晶禹;李计林;黄浩. 小尺寸装药冲击过载理论分析与仿真[J]. 振动与冲击, 2011, 30(7): 96-100
XU Wen-zheng; WANG Jing-yu; LI Ji-lin; HUANG Hao. Theory and Simulation Analysis for Penetration Overload on A Small Size Charge[J]. Journal of Vibration and Shock, 2011, 30(7): 96-100

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