破片撞击作用下的战斗部起爆规律研究

哈海荣; 王团盟; 鲁忠宝; 黎 勤

doi:10.11993/j.issn.2096-3920.2021.04.014

破片撞击作用下的战斗部起爆规律研究

doi: 10.11993/j.issn.2096-3920.2021.04.014

中国船舶集团公司第705研究所, 陕西西安, 710077

详细信息

作者简介:
哈海荣(1990-), 男, 硕士, 主要从事水中兵器战斗部的研究与设计.

中图分类号: TJ630 TJ410.2
计量
- 文章访问数: 73
- HTML全文浏览量: 4
- PDF下载量: 48
- 被引次数: 0
出版历程
- 收稿日期: 2019-08-19
- 修回日期: 2020-03-08
- 刊出日期: 2021-08-31

Study on the Initiation Regularity of Warhead under Fragment Impact

The 705 Research Institute, China State Shipbuilding Corporation Limited, Xi’an 710077, China

摘要

摘要: 针对RS211装药、全尺寸战斗部的破片撞击安全性问题, 文中首先利用非线性有限元软件LS- DYNA建立了破片撞击RS211装药战斗部的全尺寸仿真模型, 进行了仿真计算。同时通过试验验证, 得到壳体膨胀末端速度平均误差为3.7%, 说明仿真与试验结果吻合度较好, 证明了仿真模型的合理性。最后开展了破片在不同速度、质量和形状下撞击战斗部的起爆规律研究, 得到了起爆阈值。研究发现: 带锥顶圆柱破片撞击起爆战斗部装药的速度阈值为1 360 m/s; 当速度为1 830 m/s时, 带锥顶圆柱破片撞击起爆战斗部装药的质量阈值是11 g; 4种不同形状的破片以1 830 m/s的速度撞击战斗部时, 均能使炸药起爆, 但球形破片撞击炸药的峰值压力明显小于其他3个, 这可能与其光滑无锐角的外形有关。文中工作可为全尺寸战斗部破片撞击安全性研究提供参考。
- 战斗部 /
- 破片撞击 /
- 起爆规律 /
- 起爆阈值
Abstract: For the fragment impact safety of a full-scale warhead with RS211 charge, in this paper, the full-scale simulation model of a fragment impact warhead with RS211 charge is established by using the non-linear finite element software LS-DYNA. Experimental tests are then conducted to verify the simulation results. The average error of the final velocity of the shell expansion is 3.7%, indicating that the accuracy of the simulation is reasonable; therefore, the model can be used in simulation research. Finally, the initiation regularity of the fragment impact warhead, considering different values of velocity, mass, and shape, is studied, resulting in the initiation threshold. The velocity threshold of a cylindrical fragment with a cone top impacting and initiating warhead is 1 360 m/s. When the velocity is 1 830 m/s, the mass threshold of this cylindrical fragment is 11 g. Four types of fragments, which can be detonated when the warhead is charged, formed by different shapes impact the warhead at 1 830 m/s. However, the peak pressure of spherical fragments impacting the warhead is smaller than those of the others, probably due to their smooth shape, in which sharp angles are absent. This paper can be used as a reference to research the safety of a full-scale warhead fragment impact.
- warhead /
- fragment impact /
- initiation regularity /
- initiation threshold

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