摘要
将弹丸、后坐部分和发射药组成的火炮试验装置看作是一个自由后坐的质点系,利用质点系动量定理和动量守恒定理,建立了火炮射击过程中后坐部分的运动方程,根据数值分析计算得知:当膛底压力达到最大值时,爆破片被剪切,使火炮在膛内时期即开闩排气,对火炮产生向前的强大推力,从而减小火炮后坐力。试验结果表明:与传统后膛火炮相比,弹丸炮口速度基本保持不变,而后坐力却降低了50%以上。这种火炮发射方法在解决火炮威力与机动性这对矛盾上,开辟了一条新的技术途径。
Taking gun test facilities composed of projectile, recoil mass and charge as particle system of free recoil, by means of momentum theory and momentum conservation theory of particle system, kinetic equation of recoil mass in the process of gun firing was set up. According to numerical analysis and calculation, when pressure at chamber base attained the maximum, shear plug was cut surely, the breech during the period of gun inner chamber started to vent, this. generated powerful forward thrust to the gun, and thus decreased the recoil force of the gun. The test results showed that comparison with traditional closed-breech gun, muzzle velocity of projectile kept unvariant, and the recoil force of the gun was reduced by more than 50%. This launch method of the gun opens a new technical approach to solve the contradictory between gun firepower and maneuverability.
出处
《火炮发射与控制学报》
北大核心
2007年第4期10-12,共3页
Journal of Gun Launch & Control
关键词
机械设计
发射方法
低后坐力
火炮威力
后膛火炮
爆破片
mechanical design
launch method
low recoil force
gun firepower
closed-breech gun
shear plug
