随行装药方案提高大口径火炮初速的数值预测  

Velocity prediction of big caliber gun based on traveling charge scheme

作　　者：杨京广[1] 余永刚[2] 

机构地区：[1]空军第一航空学院,河南信阳464000 [2]南京理工大学,江苏南京210094

出　　处：《爆炸与冲击》2008年第2期161-165,共5页Explosion and Shock Waves

摘　　要：采用固体随行装药技术提高现役大口径火炮初速,为工程应用提供理论指导。基于随行装药在30mm弹道炮上的实验和数值模拟取得的良好结果,在100mm加农炮火炮构造参数和装填条件不变的条件下,采用固体随行装药方案,考虑弹丸改变质量,建立固体随行装药零维模型,并依据模型编写模拟软件对内弹道性能进行了模拟分析,探讨了不同随行装药量、不同点火延迟时间以及不同形状火药对火炮膛压、初速的影响。模拟结果可以用来指导100mm加农炮随行装药的设计和实验。The theory of interior ballistic course of solid traveling charge was studied tO increase the initial velocity of a big caliber gun. Based on the good results in tests and numerical simulations in the 30 mm gun of traveling charge, a zero-dimensional interior ballistic model of solid traveling charge was developed by keeping the fire data and charge conditions of the 100 mm gun same and considering the projectile mass variable. The developed model was used to numerically analyze the interior ballistic performances and to explore the effects of traveling charge mass, ignition lag time and charge power shape on the interior pressure and initial velocity of the gun. Computed results can provide an instruction for the design and experiment of the 100 mm gun of traveling charge.

关 键 词：爆炸力学 随行装药 数值模拟 内弹道 点火延迟 

分 类 号：O389[理学—流体力学] TQ562[理学—力学]