| 航弹冲击引起的遮弹层下自由场应力确定 |
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| 引用本文： | 张亚栋,张虹,方秦,郭东.航弹冲击引起的遮弹层下自由场应力确定[J].解放军理工大学学报,2004,5(4):53-56. |
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| 作者姓名： | 张亚栋 张虹 方秦 郭东 |
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| 作者单位： | 解放军理工大学工程兵工程学院 江苏南京210007
(张亚栋，张虹，方秦)，解放军理工大学工程兵工程学院 江苏南京210007(郭东) |
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| 摘 要： | 首先将航弹冲击遮弹层的问题简化为一个具有初始速度条件的振动问题，借用基础振动半空间理论的方程对等法建立了体系的运动方程，进而得到了遮弹层后自由场应力的计算公式。在此基础上，讨论了遮弹层有效作用半径、弹种及分配层介质的性质对自由场应力的影响，给出了航弹冲击作用下遮弹层下自由场应力的计算方法及结构设计建议。
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| 关 键 词： | 航弹 冲击 遮弹层 自由场应力 |
| 文章编号： | 1009-3443(2004)04-0053-04 |
| 修稿时间： | 2003年9月23日 |
Determination of Ground Shock in Soil Under Blast Layer Due to Bomb Impact |
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| ZHANG Ya-dong,ZHANG Hong,FANG Qin and GUO Dong.Determination of Ground Shock in Soil Under Blast Layer Due to Bomb Impact[J].Journal of PLA University of Science and Technology(Natural Science Edition),2004,5(4):53-56. |
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| Authors: | ZHANG Ya-dong ZHANG Hong FANG Qin and GUO Dong |
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| Institution: | Engineering Institute of Engineering Corps, PLA Univ. of Sci. & Tech., Nanjing 210007, China;Engineering Institute of Engineering Corps, PLA Univ. of Sci. & Tech., Nanjing 210007, China;Engineering Institute of Engineering Corps, PLA Univ. of Sci. & Tech., Nanjing 210007, China;Engineering Institute of Engineering Corps, PLA Univ. of Sci. & Tech., Nanjing 210007, China |
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| Abstract: | The ground shock due to bomb impact in the soil under the blast layer is studied in this paper. It is firstly simplified as a free vibration system with initial velocity condition and the dynamic equilibrium equation is established using the equation equivalence method of the theory of foundation variation in semi-space. Then the ground shock in the free field is determined and the effects of the effective radii of the blast layer, the type of the bomb and the soil are discussed. Finally, a calculation method of such ground shock is proposed and suggestions are given for structure design. |
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| Keywords: | bomb impact the blast layer ground shock in the free field |
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