底排装置点火性能对底排弹射程及密集度影响的计算分析

The Calculation Analysis of the Influence of the Ignition Function of Base Bleed Unit on Range and Density of Base Bleed Projectile

该文利用外弹道学的层权理论,分析计算了底部排气弹底排装置的点火必能对阻力系数沿全弹道分布的影响规律,指出点火性能对底部排气弹射程及密集度的影响主要体现在底排工作段上.利用这一思想计算分析了满足战技指标的平均点火时间和点火时间散布.

The influence law of the ignition function of base bleed unit on thedispersing of drag coefficient along the whole trojectary has been calculated andanalysed.It is found that the influence on the range and density lies mainly in thebase burning stage.Based on such uiewpoint,the average ignition time and theignition—time dispersion are calculated and analysed,which will have a guiding rolein the overall design of base bleed projectile.