引信设计用内弹道和中间弹道特性分析  

Analysis of Interior Ballistic and Intermediate Ballistic Characteristic for Fuze Designing

作　　者：王雨时[1] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《探测与控制学报》2007年第4期1-5,共5页Journal of Detection & Control

摘　　要：火炮弹丸内弹道特性和中间弹道特性对于引信设计而言十分重要。为给引信设计和分析提供参考，列出了国产制式火炮弹丸的内弹道性能，在此基础上进行了内弹道特性分析和中间弹道特性分析。结果表明：弹丸膛口压力平均为其最大膛压的1/4，而弹丸最大压力时间平均为弹丸膛内运动时间的2/5，弹丸最大压力点速度平均也为弹丸膛口速度的2/5。弹丸后效期长度可按20～46倍口径估算（平均为33倍口径），也可按（87-150）（ω／M）D估算，平均为119（ω／M）D。但此式不适用于迫击炮和无后坐炮。弹丸后效期长度还与武器膛口装置有关。在不考虑弹丸膛口装置影响的情况下，弹丸后效期时间长度约为0．9～10ms。利用文中给出的经验公式，由膛口速度和身管长度（或口径）即可估算出弹丸膛内运动时间和最大加速度。估算结果可用于引信分析与设计。The interior ballistic and the intermediate ballistic characteristics of artillery projectile are very important for fuze designing. In order to provide reference for fuze design and analysis, the interior ballistic performance of domestic standard artillery projectile is listed, based on this the interior ballistic characteristic analysis and the intermediate ballistic characteristic analysis has been carried on. The results showed that the muzzle pres- sure is about 1/4 of maximum chamber pressure,but the time corresponding maximum pressure is about 2/5 of the barrel time, the velocity of projectile corresponding maximum pressure also is about 2/5 of the projectile muzzle velocity. The projectile after-effect period length may estimates according to 20-46 times the size of caliber （an average of 33 times the size of caliber）, may also estimates according to （87-150）,the average is 119. However, this formula does not applicable to mortar and recoilless gun. The projectile after-effect period length is also concerned with the weapon muzzle attachment. Without considering the influence of the projectile muzzle attachments,the projectile aftereffect period length approximately is 0.9-10 ms. Using the experience formula in this article,from the muzzle velocity and the tube length （or caliber） can estimate the barrel time and the maximum acceleration. The estimated results can be used for fuze analysis and design.

关 键 词：引信设计 火炮 弹丸 内弹道 中间弹道 后效期 

分 类 号：TJ403.1[兵器科学与技术—火炮、自动武器与弹药工程]