为分析地球自转对弹道导弹射程的影响,文中通过发射系下的动力学分析,讨论了自转影响在不同弹道形状下的变化规律:随着关机点弹道倾角的增大,自转引起的落点变化将由偏东逐渐变为偏西;结合惯性系下的运动学仿真,验证了上述规律;最后根据最大射程弹道关机点速度倾角的一般范围,得出了自西向东发射有助于增大导弹最大射程能力的结论。

For analyzing the effect of earth rotation on missile range, the change rule with different trajectory shape was discussed by a dynamic analysis based on launch coordinate system. The impact point changed from eastward region to westward region with increase of the burnout point slope angel, which was validated by a kinematic simulation based on inertial coordinate system. The conclusion is that launch towards east is beneficial for increasing the range when considering the actual burnout point slope angel scope of the maximum range trajectory.