带有增压室的RLPG零维内弹道模型  

Zero-Dimensional Interior Ballistic Model of RLPG With Supercharged Combustion Chamber

作　　者：高永峰[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,南京210094

出　　处：《弹道学报》2012年第3期15-18,共4页Journal of Ballistics

摘　　要：为了在喷孔面积为常数的条件下提高膛压曲线充满度,提出了一种带有增压室的再生式液体发射药火炮结构方案,建立了考虑固体点火药的零维内弹道模型.利用某迫击炮的结构参数和装填条件,采用龙格-库塔法进行了数值模拟,分析了内弹道性能.在一定结构参数条件下的计算结果显示:贮液室和增压室的压力在液体药喷射过程中一直增加,且明显高于燃烧室压力;燃烧室压力出现近似的平台效应.模拟结果表明,设置增压室可在喷孔面积为常数的条件下提高膛压曲线充满度.To improve the fill coefficient of combustion chamber pressure curve under the conditions of constant area of spout, a regenerative liquid propellant gun with a supercharged combustion chamber was presented. A zero-dimensional interior ballistic model considering both liquid and solid propellant was developed and analyzed. Utilizing structural parameters and charge conditions of some mortar, the numerical simulation was carried out by using Runge-Kutta method. Based on certain structural parameters,the numerical results show that the pressure of fuel reservoir and supercharged combustion chamber will go up at all the time in spurting course of liquid propellant, and the pressure of combustion chamber is lowest and appears an approximate plateau. The numerical results indicate that the fill coefficient of combustion chamber pressure curve can be improved by setting supercharged combustion on condition that the area of spout is constant.

关 键 词：再生式液体发射药火炮 零维 内弹道 增压室 

分 类 号：TJ012[兵器科学与技术—兵器发射理论与技术]