一种带中心孔的密实随行装药内弹道数值计算及分析  

Numerical Calculation and Analysis on Interior Ballistics of Compacted Traveling Charge with a Central Hole

作　　者：曹永杰[1] 豆松松 赵娜[1] 胡杰 李志飞[1] 章旺 CAO Yong-jie;DOU Song-song;ZHAO Na;HU Jie;LI Zhi-fei;ZHANG Wang(Northwest Institute of Mechanical and Electrical Engineering,Xianyang 712099,China;School of Mechatronic Engineering,Xi'an Technological University,Xi'an 7142002,China;Norinco Group Test and Measuring Academy,Huayin 714200,China)

机构地区：[1]西北机电工程研究所,陕西咸阳712099 [2]西安工业大学机电工程学院,西安710021 [3]中国兵器工业试验测试研究院,陕西华阴714200

出　　处：《装备环境工程》2022年第3期39-45,共7页Equipment Environmental Engineering

摘　　要：目的 推进密实随行装药技术工程化应用的进程,提出一种带中心孔的密实随行装药结构方案。方法针对该方案建立相应的内弹道模型,计算得到不同装药量、不同点火延迟时间条件下随行装药内弹道性能的变化情况。结果 受燃尽性约束,端面燃烧型随行装药药柱设计高度有限,内弹道性能提升较小。在随行药柱燃速不变的条件下,带中心孔的随行装药可有效提高随行装药量,从而显著提高内弹道性能。结论 带中心孔的随行装药的点火延迟时间控制精度应为0.01 ms级,对缓燃包覆层设计、加工精度提出了较高要求。In order to promote the engineering application of compacted traveling charge technology, a structured scheme of compacted traveling charge with the central hole was proposed. The corresponding interior ballistic model was established for the scheme, and the variation of the interior ballistic performance of the traveling charge under different charges and different ignition delay time was calculated. The calculation results show that the design height of the end-face combustion traveling charge is limited subject to the flammability constraint, and the interior ballistic performance is improved little. Under the condition of the constant burning rate of the traveling charge, the traveling charge with the central hole can effectively increase the traveling charge mass and thus significantly improve the interior ballistic performance. The control accuracy of the ignition delay time of traveling charge with center hole should be 0.01 ms, which requires high design and machining precision of slow combustion coating layer. The research can guide the design of the delay ignition mechanism of the traveling charge with the coating layer based on slow combustion materials.

关 键 词：火炮 随行装药 点火延迟 内弹道 发射安全性 

分 类 号：TJ410.2[兵器科学与技术—火炮、自动武器与弹药工程]