摘要
设计了具有自动充气功能的单级作动筒式冷气弹射装置,其作动筒采用气体回收方式,主要用于弹射"小直径炸弹"SDB(Small Diameter Bomb).为了验证弹射装置的工作性能,建立了该弹射装置主要部件的数学模型,运用MATLAB软件计算仿真,分析了弹射装置的动力学特性.仿真结果表明:SDB弹射速度可以满足设计要求,并且当SDB质心与弹射装置两个作动筒非对称时,SDB会产生俯仰角,俯仰角不能过大,可以通过控制导气管调节阀开口通径来降低俯仰角.
A cold air ejection device with single stage actuators that can automatically be inflatable is designed,and the actuators adopt the gas recovery method,it is mainly used to eject small diameter bomb（SDB）.In order to verify the performance of the ejection device,the mathematical model of the main parts of ejection device was established.MATLAB was used to calculate and simulate and analyze the dynamic characteristics of the ejection device.The results of simulation show that the ejection speed of SDB can meet the design requirement and When SDB centroid and the two actuators of ejection device are asymmetrical,SDB will produce pitching angle and it can not be too large,pitching angle can be reduced by controlling the opening size of the air tube regulating valve.
出处
《中北大学学报（自然科学版）》
北大核心
2017年第5期568-573,共6页
Journal of North University of China(Natural Science Edition)
关键词
冷气弹射装置
气体回收
内弹道
小直径炸弹
cold air ejection device
gas recovery
interior ballistic
small diameter bomb （SDB）
