气推式脱壳弹充排气规律研究与计算

The Study and Calculation of Gas Filling and Ejecting Characteristics of Gas-propelled APDS

气推式脱壳弹以其结构简单、脱壳干扰小、无自伤等优点而具有广泛应用前景.该文对其弹托气室与炮膛间的充、排气规律进行了分析研究,计算了某航炮用气推弹气室内温度、密度和压力沿内弹道段的变化,分析了气孔面积对气室膛口压力的影响,为进一步研究气推弹瞠外脱壳规律提供理论依据.

With the advantage of simple structure,little disturbance and no self-hurtwhile discarding sabot,the gas-propelled APDS owns its hopeful prospect.This paperstudies the gas filling and ejecting characteristics between the gun barrel and the gaschamber in sabot,and calculates the temperature,density and pressure in the gas cham-ber during the interior ballistics.It also analyzes the effect of gas hole area on the pres-sure in the gas chamber near the barrel exit.The calculation will give foundation for thefurther study on the discarding sabot process of a gas-propelled APDS.