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兵工学报 ›› 2020, Vol. 41 ›› Issue (2): 246-253.doi: 10.3969/j.issn.1000-1093.2020.02.005

• 论文 • 上一篇    下一篇

JO-9C小尺寸传爆药驱动飞片影响因素模拟仿真研究

刘荣强1, 聂建新1, 焦清介1, 徐新春2   

  1. (1.北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081;2.北京动力机械研究所, 北京 100074)
  • 收稿日期:2019-04-09 修回日期:2019-04-09 上线日期:2020-04-04
  • 作者简介:刘荣强(1991—),男,博士研究生。E-mail: 1226702247@qq.com
  • 基金资助:
    国家重点基础研究发展计划项目(6133060208);国家自然科学基金青年科学基金项目(11702032)

ZHANG ChuanqingSONG Haijun(239)Simulation Analysis of Influencing Factors of Flyer Driven by Small-size JO-9C Booster Explosive

LIU Rongqiang1, NIE Jianxin1, JIAO Qingjie1, XU Xinchun2   

  1. (1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology,Beijing 100081,China;2. Beijing Power Machinery Research Institution, Beijing 100074, China)
  • Received:2019-04-09 Revised:2019-04-09 Online:2020-04-04

摘要: 为优化传爆序列中传爆药驱动飞片性能,建立小尺寸传爆药驱动飞片作动的仿真模型,提出了一种获取传爆药爆轰产物JWL状态方程参数的计算方法。设计了典型传爆药JO-9C驱动飞片试验,验证了仿真模型和计算方法的准确性。提出了采用飞片速度和动能共同作为其效能评价的参量,研究装药结构、加速膛直径和飞片厚度等因素对飞片效能的影响规律。结果表明:装药长径比为1.5时可兼顾飞片速度与装药量;加速膛直径应不大于装药直径,可获得良好飞片形貌及较高飞行速度;飞片厚度过薄可能会出现断裂。以5 mm直径JO-9C装药结构为例,最优设计为:装药长径比为1.5,即装药高度为7.5 mm,加速膛直径为5 mm,飞片厚度为0.3 mm,此时飞片速度为1 663 m/s,动能为51.79 J.

关键词: 传爆药, 驱动飞片, 传爆序列, JWL状态方程, 模拟仿真

Abstract: A simulation model of the flyer driven by a small size booster explosive is established to optimize the performance of flyer driven by booster explosive in an explosive train. A calculating method of the JWL equation of state (EOS) parameters for booster explosive is proposed. A typical booster explosive JO-9C is chosen to drive metallic flyer in experiment, verifying the accuracy of the proposed simulation model. The velocity and kinetic energy of flyer are chosen as the parameters to evaluate the perfor- mance of flyer. The influences of the charge structure, the diameter of accelerating chamber and the thickness of flyer on the performance of flyer are analyzed. The results show that both the flyer velocity and the charge quantity should be taken into account when the length-to-diameter ratio of charge is 1.5. The diameter of the accelerating chamber should not be greater than that of the charge, so that good flyer morphology and high flying speed would be achieved. If the flyer is too thin, it may easily break. Taking a 5 mm-diameter JO-9C charge as an example, the optimal design is as follows: the length-to-diameter ratio of charge is 1.5, meaning that the charge height is 7.5 mm, the diameter of accelerating chamber is 5 mm, and the thickness of flyer is 0.3 mm. In this case, the velocity and kinetic energy of flyer are 1 663 m/s and 51.79 J, respectively. This work has certain theoretical and practical value for the reliable design of explosive train. Key

Key words: boosterexplosive, flyer, explosivetrain, JWLequationofstate, analogsimulation

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