大口径膨胀波火炮减后坐效率分析  

Analysis of Recoil Reduction Efficiency of a Large Caliber Rarefaction Wave Gun

作　　者：王语涵 李志刚[1] 曹从咏[2] WANG Yuhan;LI Zhigang;CAO Congyong(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China;School of Automation,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]南京理工大学自动化学院,江苏南京210094

出　　处：《火炮发射与控制学报》2022年第2期20-25,共6页Journal of Gun Launch & Control

摘　　要：相比于常规火炮,膨胀波火炮在保证炮口威力的同时实现了低后坐、低身管热量的发射过程,使火炮性能显著提高,因此其内弹道研究对于武器系统的改进有着重要意义。针对某型大口径膨胀波火炮的发射过程,构建一维均相流内弹道模型,采用CTVD差分格式求解该模型,得到该膨胀波火炮膛内各参量的变化规律,并与常规火炮后坐冲量进行对比。结果表明,与同类型常规火炮相比,大口径膨胀波火炮通过膛底排气,在基本不降低弹丸速度的情况下可以有效减小后坐力,减后坐效率达到26.1%。在合理范围内降低初速,减后坐效率将达到47.3%。Compared with conventional artillery,the rarefaction wave gun ensures low recoil and low gun barrel heating in the launching process so that its performance is significantly improved.Therefore,the internal ballistic research of the rarefaction wave gun is important for the improvement of the weapon system.Based on the firing process of a large caliber rarefaction wave gun,a one-dimensional homogeneous flow internal ballistic model is established.The CTVD differential schemes is used to solve the model to identify the patterns of change of each variable of the rarefaction wave gun.They are then compared with the recoil impulses of conventional guns.The results show that,compared with conventional guns,the large caliber rarefaction wave gun can effectively reduce the recoil by venting gas out the breech with little effect on the muzzle velocity.The recoil reduction efficiency can be 26.1%.It can be up to 47.3%if the muzzle velocity is allowed to be lowered within a reasonable range.

关 键 词：膨胀波火炮 均相流 火炮内弹道 后坐力 

分 类 号：TJ102.1[兵器科学与技术]