子母弹中心燃气式抛撒内弹道过程仿真  

Dispensing Interior Ballistic Numerical Simulation on Cluster Bomb of Center Powder Gas

作　　者：张博孜[1] 王浩[1] 王珊珊[2] 

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 [2]中国舰船研究设计中心,湖北武汉430064

出　　处：《计算机仿真》2015年第1期19-22,28,共5页Computer Simulation

摘　　要：在子母弹翻转速度优化控制的研究中,提高子母弹抛撒过程中子弹的翻转角速度有利于子弹在复杂的激波场中顺利抛出。对于中心燃气式抛撒,一般通过增加扰流板调节子弹翻转角速度,即增加了抛撒系统的复杂程度又提高了系统的附加质量。现提出一种通过改变燃气发生器小孔轴向分布位置,调节子弹翻转角速度的方法。对抛撒内弹道过程进行了仿真计算,仿真与测试结果基本一致。得到了小孔位置变化对子弹翻转角速度的影响规律,并分析了角速度的产生机理。仿真结果表明,合理选择燃气发生器的小孔位置有助于提高子弹的翻转角速度,分析结果可作为中心燃气式抛撒机构的设计参考。Enhancing overturning angular rate of submunition is good to submunition dispensing smoothly in complex shock field in dispersing process. Using spoiler adjusting overturning angular rate is increasing not only the complexity but also the additional mass in central gas dispersing system. A way was put forward to adjust the overturning angular rate with changing the hole＇ s axial position distribution of gas generator. The dispensing interior ballistics process was simulated, and the results were basically in accordance with the test results, which show the effect law of hole＇ s position changing to submunition overturning angular rate and also the generation mechanization. The analyses indicates that advisable designing of the hole＇ s position is benefit to improve the overturning angular rate of submunition, which can be a reference to the design of central gas dispersing system.

关 键 词：子母弹 内弹道 两相流 涡旋 

分 类 号：TJ413.3[兵器科学与技术—火炮、自动武器与弹药工程]