| 线性聚焦式杀伤战斗部设计及破片飞散特性 |
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| 引用本文： | 葛超,王晋,郑元枫,王海福,余庆波.线性聚焦式杀伤战斗部设计及破片飞散特性[J].北京理工大学学报,2022,42(12):1219-1228. |
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| 作者姓名： | 葛超 王晋 郑元枫 王海福 余庆波 |
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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： | 北京市自然科学基金青年项目（1214022） |
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| 摘 要： | 为进一步提升杀伤战斗部破片聚焦效应，开展了线性聚焦式杀伤战斗部设计及破片飞散特性研究. 基于破片线性聚焦原理，研究了破片排布方法. 引入装药长度修正系数，建立了等冲量装药曲线理论模型，掌握了线性聚焦式杀伤战斗部破片驱动及速度分布特征，揭示了战斗部装药长度及其修正系数对破片平均飞散速度、速度分布幅值、速度分布标准差等飞散特性参数影响规律. 结果表明，装药长度一定时，随修正系数增加，破片平均速度增大，速度分布幅值、标准偏差均降低，修正系数一定时，随装药长度增加，破片平均速度、速度分布幅值和标准偏差均增加. 研究结果可为聚焦杀伤战斗部设计提供新的技术途径.
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| 关 键 词： | 线性聚焦 战斗部 破片 飞散 |
| 收稿时间： | 2021-12-13 |
Research on Design of Linear Focusing Warhead and Fragmentation Characteristics |
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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 further enhance the fragment focusing effect of the warhead, this research was done focusing on the design of linear focusing warhead and fragmentation characteristics. Based on linear focusing principle, an arrangement method of fragments was analyzed. A theoretical model for equal-impulse charge generatrix was established by introducing correction parameter of charge length. By numerical modeling, the fragmentation characteristics of linear focusing warhead were obtained, while the effects of charge length and correction parameter on average fragment velocity, velocity amplitude, and standard deviation were revealed. The results show that when charge length is constant, average velocity of fragments increases with the increase of correction parameter, but velocity amplitude and standard deviation of velocity distribution decrease. When correction parameter is constant, average velocity, velocity amplitude and standard deviation of fragments increase with the increase of charge length. The results can provide a new technology approach for the design of fragmentation warhead. |
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