采用内装式空中发射运载火箭技术,载机与运载火箭的分离过程时间短,箭机距离近,整个过程需充分考虑载机与火箭的安全性,其中火箭的爆炸是影响安全性的一个重要方面。文中基于爆炸相似理论,建立了以爆炸波冲压、载机表面过载等为变量的目标函数,结合火箭初始弹道动力学方程,得到了爆炸冲击波阵面压力随冲击波传播距离的变化曲线和特殊超压值时的箭机位置关系表,确定了安全距离,可以为空中发射试验和发射任务圆满完成提供一定的安全性理论基础。

The internally carried air-launched launch vehicle has the characteristics such as separating time of rocket and plane is short and the distance between plane and rocket is short. The explosion of rockets is a factor affecting safety that need to be thought in the process. The objective function with explosion wave stamping, carrier aircraft surface overload for variables was set up based on the similarity theory method of explosion. It is gotten that explosion wave front pressure with explosion wave propagation distance curve and position relation table between rocket and plane on special super pressure according to initial trajectory dynamics equation of the rocket in the end. The safety distance is confirmed, which provides reference in theory for launch experiment and air launch.