摘要
二级轻气炮是一种超高速发射试验设备,在超高速碰撞等研究领域中被广泛应用,其主要原理是利用轻质气体膨胀做功从而对模型进行加速,以实现极高的发射速度。为实现25 mm口径二级轻气炮10 g以上模型6 km/s超高速稳定发射能力,利用自研内弹道分析软件调整气动轮廓结构参数,对比分析了模型计算发射速度、加速度、弹底载荷等内弹道发射性能参数,完成了新25 mm口径二级轻气炮的优化设计;通过优化发射装填参数,确定了动态调试试验的装药量和充气压力;通过2次发射试验实现了14 g气动分离模型6.238 km/s和6.366 km/s的超高速发射能力,新25 mm口径二级轻气炮气动轮廓结构参数可为其他轻气炮的设计提供参考和借鉴。
The two-stage light gas gun is a kind of hyper-velocity launching test equipment,which is widely used in the research field of hyper-velocity impact.Its main principle is to use the expansion work of light gas to accelerate the projectile for achieving the extremely high launch speed.This optimization is aimed at realizing the stable launching capability of a speed at 6 km/s for packages weighing 10 g and above by a 25 mm two-stage light gas gun.To optimize the new 25 mm two-stage light gas gun,independently developed interior ballistic analysis software was used to adjust the parameters of the aerodynamic profile structure.Interior ballistic parameters,such as calculated package laun-ching velocity,acceleration and projectile bottom loading,were also compared and analyzed.The charge mass and pump gas pressure for dynamic debugging tests were determined by optimizing the loading parameters.The two launching test results showed that the new 25 mm two-stage light gas gun has achieved the ability to launch a 14 g aerodynamic separation package to hyper-velocities of 6.238 km/s and 6.366 km/s.The structural parameters of the aerodynamic profile of the new 25 mm two-stage light gas gun can provide reference for the design of other light gas guns.
作者
倪克松
焦德志
宋强
柯发伟
NI Kesong;JIAO Dezhi;SONG Qiang;KE Fawei(Hyper-velocity Aerodynamics Institute,China Aerodynamics Research and Development Center,Mianyang 621000,Sichuan,China;National Key Laboratory of Aerospace Physics in Fluids,Mianyang 621000,Sichuan,China)
出处
《火炮发射与控制学报》
北大核心
2025年第3期10-17,31,共9页
Journal of Gun Launch & Control
关键词
二级轻气炮
内弹道计算
性能优化
气动力试验
超高速发射
two-stage light gas gun
interior ballistic calculation
performance optimization
aerodynamic test
hyper-velocity launch
