摘要:

为了研究爆震弹近地动爆冲击波特性，运用AUTODYN软件仿真分析了某型64 mm爆震弹在不同运动速度以及不同距地高度下冲击波的衰减规律及非致命特性.研究结果表明：动爆条件对冲击波的增益效果整体上随距离的增加而逐渐减小；随运动速度的增大，超压值整体增益效果有所增加，对人员致伤效果可达严重损伤；随起爆高度增加，冲击波本身到达地面时的入射波强度在逐渐减小，相应的冲击波地面反射强度也随之减小；在100 m/s动爆条件下，起爆高度为4 m时，爆震弹会造成部分人员中等损伤，在水平距离2.5 m外的人员安全无伤，而当起爆高度为5 m时，爆震弹超压基本不会对下方人群造成伤害.

Abstract:

In order to study the dynamic shock wave characteristics of detonation grenade near the ground, the attenuation law and non-lethal characteristics of shock wave of a 64 mm detonation grenade at different motion speeds and different heights from the ground were simulated and analyzed by AUTODYN software. The results show that the gain effect of dynamic explosion condition on shock wave decreases with the increase of distance. With the increase of motion speed, the overall gain effect of overpressure value increases, and the injury effect on personnel can reach serious damage. As the detonation height increases, the intensity of the incident wave when the shock wave itself reaches the ground gradually decreases, and the corresponding ground reflection intensity of the shock wave decreases. Under the condition of 100 m/s dynamic explosion, when the detonation height is 4 m, the detonation grenade will cause moderate damage to some people, and the people outside the horizontal distance of 2.5 m are safe and harmless. When the detonation height is 5 m, the detonation grenade overpressure will not cause damage to the people below.