ballistic motion

For a self-propelled artillery the computational program is achieved, by which the simulation of launch process is realized. The interior ballistic, motion of projectile in gun tube, dynamic response of the artillery and initial disturbance of projectile are exactly simulated.

编制了计算程序，实现了对某自行火炮发射过程的数值模拟，在准确计算内弹道过程的同时，获得了火炮的动力响应、弹丸膛内运动和起始扰动。

Finally, we compare six degrees of freedom simulation results of ballistic re-entry missiles motion with the computing results of approximate formula. The comparison shows the feasibility of the approximate analysis.

最后用六自由度弹道数字仿真结果同近似计算结果作了比较，比较结果表明了近似分析的可行性。

Compared with general time delayed filter, the controller depresses the high frequency components of the command input, and reduces the excitation of the vibratory modes and ballistic motion of the system.

与常用的时滞滤波器相比，能抑制控制信号的高频成分，降低未建模动态激励和运动冲击。

Because of the ballistic motion, hot electron diffusion and energy transport between the Cu film and substrate, the cooling process of electron system in the Cu film is speeded up.

这是由于在实验中电子弹道运动和热电子扩散作用的存在，以及薄膜和衬底间的能量输运，加快了薄膜内电子系统的冷却过程。