半可燃药筒埋头弹内弹道性能数值模拟  

Numerical Simulation of Interior Ballistic Performance of Cased Telescoped Ammunition With Semi-combustible Cartridge

作　　者：郭俊廷 余永刚[1] GUO Junting;YU Yonggang(School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学能源与动力工程学院,江苏南京210094

出　　处：《弹道学报》2021年第3期52-56,共5页Journal of Ballistics

摘　　要：为了提高埋头弹药轻量化程度及发射过程的能量利用率,将可燃药筒材料应用到埋头弹药的结构中。基于二次点火和火药程序燃烧技术,将可燃药筒简化为变燃速片状药,并作为混合装药中的一种,建立了半可燃药筒埋头弹零维内弹道模型。对105 mm埋头式榴弹射击试验进行数值模拟,验证了所建模型的正确性。在此基础上对105 mm半可燃药筒埋头式穿甲弹的内弹道性能进行预测分析,得到最大膛压为537.5 MPa,炮口初速为1667 m/s。In order to improve the lightweight of cased telescoped ammunition(CTA)and the energy utilization rate in the launch process,the combustible cartridge materials were applied to the structure of cased telescoped ammunition(CTA).Based on the secondary ignition and propellant combustion technology,the combustible cartridge was simplified into a variable burning-rate flake charge,and regarded as one of the mixed charges,and the zero-dimensional interior ballistic model of CTA with semi-combustible cartridge was established.Numerical simulation of 105 mm CTA grenade shooting experiment was carried out,and the correctness of the proposed model was verified.On this basis,the interior ballistic performance of 105 mm CTA armor-piercing projectile with semi-combustible cartridge was predicted and analyzed.The maximum chamber pressure is 537.5 MPa,and the muzzle velocity is 1667 m/s.

关 键 词：半可燃药筒 埋头弹药 混合装药 内弹道 数值模拟 

分 类 号：TJ012.1[兵器科学与技术—兵器发射理论与技术]