再生式液体发射药火炮贮液室激波模型  

Shock Wave Model in Reservoir of Regenerative Liquid Propellant Gun

作　　者：王亮宽[1] 张相炎[1] 刘宁[1] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《兵工学报》2007年第8期915-918,共4页Acta Armamentarii

摘　　要：在再生式液体发射药火炮喷射后期,贮液室普遍存在高频高幅压力振荡。由于活塞的运动扰动,经过一定时间贮液室中可能形成激波。基于特征线理论推导了特征线经固壁与活塞多次反射后激波形成模型,设计了计算流程图及给出了应用算例。数值计算结果与实验现象基本符合。此模型为预测不同结构再生式液体发射药火炮贮液室中激波的形成打下了坚实的理论基础,对探讨贮液室压力振荡产生机理具有一定理论意义。Oscillation with high frequency and high pressure in reservoir of regenerative liquid propellant gun（RLPG） is generated at final stage of an ejection cycle. Owing to piston movement, shock waves in reservoir may be formed at a certain time. Based on the reflective theory of characteristic line, a model of shock waves formed by repeatedly reflected pressure waves between piston and fixed wall was established. The flow chart of calculation was designed and an applied example was given. The numerical calculation results are in accordance with experimental data basically. This model lays the theoretical foundation to forecast shock wave formation in reservoir for different structures of RLPG, and has theoretical meaning for exploring the mechanism of pressure oscillation generation.

关 键 词：机械学 液体发射药火炮 特征线 激波 压力振荡 

分 类 号：TJ3[兵器科学与技术—火炮、自动武器与弹药工程]