舰船电子工程2023，Vol.43Issue(12)：124-127,222,5.DOI:10.3969/j.issn.1672-9730.2023.12.025
装药形状对地冲击荷载影响的数值模拟研究
Numerical Study of the Effect of Charge Shape on Ground Shock Load
洪智捷1
作者信息
- 1. 陆军工程大学爆炸冲击防灾减灾国家重点实验室 南京 210007
- 折叠
摘要
Abstract
With the development of new ground penetrating weapons,it is of great significance to study the ground shock load in sand caused by the explosion of cylindrical charge with large aspect ratio for the design of underground protective structure.In this paper,a numerical model of spherical charge which is completely closed in sand is established.By comparing with the formula in TM5-855-1 manual,the accuracy of the numerical calculation method is verified.Subsequently,6 numerical models of cylindri-cal charge with different length-to-diameter ratios closed explosion in sand are established.Numerical results show that the charge shape has a great influence on the ground shock load near the explosion,while the influence can be ignored beyond a certain scaled distance.Based on the ground shock load generated by spherical charge explosion,the charge shape coefficient is introduced.By fit-ting the numerical simulation results,the calculation formula of charge shape coefficient of axial and radial ground shock load is ob-tained.关键词
装药形状/砂土/地冲击/数值模拟Key words
charge shape/sand/ground shock/numerical simulation分类
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洪智捷..装药形状对地冲击荷载影响的数值模拟研究[J].舰船电子工程,2023,43(12):124-127,222,5.
