底排燃气二次扩张减阻效果的建模分析与试验研究  

A Model Analysis & Experimental Study of The Secondary Expansion & Reduction Drag Effect of The Burning Gas

作　　者：钱建平[1] 都兴良[1] 

机构地区：[1]南京理工大学机械学院,江苏南京210094

出　　处：《弹箭与制导学报》2001年第2期55-58,共4页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：提出了底排燃气压力不随外部压力变化 ,既可改善底排弹射击精度又可提高减阻效果的二次扩张原理 ,建立了底排燃气二次扩张压力的计算模型 ,并通过采用二次扩张原理的新型底排装置与传统底排装置的对比试验 。A secondary expansive principle of the buning gas pressure vary without the extemal presure is pressure in this paper. It can be used not only to change the fire precision of the base bleed projectile, but also to improve the effect of reduction drag and expansion range. The calculating model of the secondary expansive pressure of the burning gas is constructed. By means of analysis of the experimental results, it has been confirmed that the new base bleed unit can be designed, with the secondary expansive principle of the burning gas pressure.

关 键 词：底排燃气 二次扩张 减阻效果 底排装置 底排弹 

分 类 号：TJ413[兵器科学与技术—火炮、自动武器与弹药工程]