喷气反推式低后坐力武器内弹道机理研究  

Interior Ballistic Research on Reversely Jet Low Recoil Weapon

作　　者：张帆[1] 廖振强[1] 刘国鑫[2] 陈杨[1] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]解放军炮兵学院南京分院,江苏南京211132

出　　处：《火炮发射与控制学报》2008年第2期6-10,共5页Journal of Gun Launch & Control

摘　　要：喷气反推式低后坐力武器通过从膛内导出部分火药气体经喷管向后喷射实现了大幅度减小后坐冲量的目的。运用准一维准两相流理论建立了其内弹道过程的动力学模型,以14.5mm喷气反推式低后坐力弹道枪为例进行了数值计算,并将计算结果与普通机枪的内弹道过程进行了对比。计算结果表明,在结构参数匹配合理的情况下,14.5mm口径的喷气反推式低后坐力武器能以仅损失6.3%的初速的代价减少40.56%的后坐冲量,这一性能对于增强单兵和轻型作战平台的火力具有重要意义。Reversely jet low recoil weapon dramatically reduces recoil impulse by jetting the gas reversely from the bore through the nozzle. A dynamic model of this weapon is made using quasi one-dimensional quasi two-phrase flow theory. A 14. 5 mm reversely jet low recoil test gun is taken for numerical simulating and its performance is compared with that of a traditional 14. 5 mm machine gun. It is found that 14. 5 mm reversely jet low recoil gun has the potential of reducing 40.5% of the recoil impulse by losing only 6.3% of the muzzle velocity with proper structural parameter, and this performance is meaningful for enhancing firepower of individual and light combat platform.

关 键 词：工程热物理 低后坐力武器 内弹道模型 准两相流 发射原理 

分 类 号：TJ012.15[兵器科学与技术—兵器发射理论与技术]