超高射频武器内弹道数值仿真  

Numerical Simulation of Interior Ballistics for Hyper Firing-Rate Weapon

作　　者：赵建荣[1] 姚养无[2] 孙化东[1] 

机构地区：[1]中国船舶重工集团公司第710研究所,湖北宜昌443003 [2]中北大学机电工程学院,山西太原030051

出　　处：《中北大学学报（自然科学版）》2009年第3期217-221,共5页Journal of North University of China(Natural Science Edition)

摘　　要：根据超高射频武器发射的基本原理,提出了一种可以解决火药燃气密封和弹丸药柱强度问题具有纵向尺寸小的新型装药结构——串联预装填系统,以此为基础根据经典内弹道学建立了内弹道数学模型,运用M atlab7.1语言编程,对内弹道过程进行了数值仿真,分析了射击频率的变化对内弹道性能的影响规律:非耦合时主要是由于各发弹在枪管中的物理位置不同而导致最大膛压和弹丸出枪口点速度有所变化,弱耦合时是由于弹前阻力对内弹道性能起主要作用而导致最大膛压和弹丸出枪口点速度有较大的变化.One new-style powder-installed structure of small fore-and-aft dimension, namely serieswound beforehand loading system, was brought forward according as projecting basic principle of hyper firing-rate weapon. The system could solve the problem of pressurization of powder burning gas and cylindrical powder intensity of bullet. On the basis of that, a mathematical model of interior ballistic was established by the classical interior ballistic theory, the process of interior ballistic was numerically simulated by Matlab7.1 language, and the influence regularities of the variations of firing rate upon the interior ballistic performance were analyzed. The results indicate that the different physical locations of all bullet in gun result in the change of maximum pressure and muzzle velocity in non-coupling firing conditions, the frontal bullet resistance plays an important part in weak coupling firing conditions to the interior ballistic characteristics and conduces the biggish change of maximum pressure and muzzle velocity.

关 键 词：超高射频 内弹道 数学模型 MATLAB 数值仿真 

分 类 号：TJ012.1[兵器科学与技术—兵器发射理论与技术]