| 立方体预制破片战斗部破片初速计算模型 |
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| 引用本文： | 印立魁,蒋建伟,门建兵,王树有.立方体预制破片战斗部破片初速计算模型[J].兵工学报,2014,35(12):1967-1971. |
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| 作者姓名： | 印立魁 蒋建伟 门建兵 王树有 |
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| 作者单位： | (北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081) |
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| 基金项目： | 国家自然科学基金项目，国家重点基础研究发展计划项目，北京理工大学爆炸科学与技术国家重点实验室基金项目 |
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| 摘 要： | 为了建立立方体破片的初速计算模型，运用AUTODYN软件分析已有试验的爆炸驱动过程，将其分为爆炸产物不泄露和泄露两阶段，基于系列假设、冲量定理和修正的爆炸产物压强公式建立了全过程的立方体破片速度计算模型。该模型给出的破片初速值与试验结果吻合较好，并反映出立方体预制破片的初速还与周向破片数量及驱动过程中破片的最大周向形变量有关。
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| 关 键 词： | 兵器科学与技术 战斗部 预制破片 初速 数值模拟 |
| 收稿时间： | 2014-02-18 |
An Initial Velocity Model of Explosively-driven Cubical Fragments |
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| YIN Li-kui,JIANG Jian-wei,MEN Jian-bing,WANG Shu-you.An Initial Velocity Model of Explosively-driven Cubical Fragments[J].Acta Armamentarii,2014,35(12):1967-1971. |
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| Authors: | YIN Li-kui JIANG Jian-wei MEN Jian-bing WANG Shu-you |
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| Affiliation: | (State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology,Beijing 100081, China) |
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| Abstract: | In order to build a model to predict the initial velocity of explosively-driven cubical fragments, the simulation is carried out to analyze the explosive driving process by using AUTODYN hydrocode. The explosive driving process is divided into two stages, i.e., leakage and non-leakage of detonation product. A model of cubical fragment velocity is established by theoretical derivation based on a series of hypothesis, impulse theorem and modified gas pressure formula. The results are well consistent with the experiment results. The results show that the number and deformation of fragments have influence on the initial velocity of fragment. |
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| Keywords: | ordnance science and technology warhead preformed fragment initial velocity numerical simulation |
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