采用一元非定常特征线理论分析了单级轻气炮的发射性能,给出了储气室长度,储气室与发射管截面积比,弹丸质量,破膜压力和环境压力等参量变化对弹丸运动规律的影响,还得到了发射过程中弹丸底部压力的交化规律,为轻气炮的工程设计和性能计算提供了一个较好的方法。 Based on the unary unsteady characteristic line theory, the emission performance of single-stage light gas gun is analyzed. The change of parameters such as gas storage chamber length, gas storage chamber to tube cross-sectional area ratio, projectile mass, rupture pressure and ambient pressure are analyzed. The law of motion and the law of the pressure at the bottom of the projectile during the launching process are also obtained. This provides a good method for the engineering design and performance calculation of the light gas gun.