火箭增程发动机点火时间精度对弹丸射程的影响  

Effect of the Ignition Time Accuracy of Extended Range Rocket Engine on Projectile Range

作　　者：刘鹏[1] 王雨时[1] 闻泉[1] 马跃鹏 张志彪[1] 刘锦春 

机构地区：[1]南京理工大学机械学院,南京210094 [2]北方华安工业集团有限公司,黑龙江齐齐哈尔161046

出　　处：《弹箭与制导学报》2015年第5期99-102,106,共5页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：为了确定点火具点火时间的精度要求,并进一步选择点火具定时技术原理,应用火箭增程弹质点外弹道学理论,解算了火箭增程弹外弹道质心运动微分方程组,得到了射程随火箭增程发动机点火时间和射角变化的规律。火箭增程弹点火具点火时间精度越高,弹丸射程散布就越小,近似呈线性关系。以155 mm口径加榴炮底排-火箭复合增程弹为例,点火具点火时间精度在±1 s以下时有可能满足弹丸最大射程精度要求;而在±1 s以上时,难以满足弹丸最大射程精度要求。点火具宜优先采用电子定时技术原理。In order to determine ignition time accuracy of igniter and select timing technology principle of igniter,the particle exterior ballistics theory of extended-range rocket projectile was applied to solve the group centroid differential equations of exterior ballistics of extendedrange rocket projectile,the variation regularity of extended-range rocket engine ignition time and angle for range was obtained. The higher precision of extended-range rocket projectile ignition time is,the smaller dispersion of projectiles range is,approximately taking on linear relationship The hybrid base-bleed-rocket extended-range projectile for 155 mm caliber howitzer was used as an example,when the ignition time precision of igniter at ± 1 s or less,the precision of projectile maximum range may meet; while at ± 1 s or more,it is difficult to meet the maximum projectile range precision. An electronic timing technology of igniter should be prior used.

关 键 词：底排-火箭复合增程弹 计算机仿真 设计指标 点火具 精度 射程散布 

分 类 号：TJ450.1[兵器科学与技术—火炮、自动武器与弹药工程]