6自由度修正弹道脉冲推力仿真研究

建立了基于SIMULINK的六自由度弹道修正弹仿真模型，并在此基础上研究了脉冲推力作用下的弹道修正特性。针对非质心作用推力的情况，讨论了附加攻角振荡幅度、脉冲推力大小、作用时间间隔等因素对于修正距离的影响。根据讨论结果发现，修正弹在预设固定时间点附近存在有利触发脉冲时机。如果能够在预设时间点附近的一个短时间范围内选择有利触发时机，就可以大大减少修正弹附加攻角的振荡，从而接近达到脉冲推力作用于质心时的预期修正效果．

Simulation of 6DoF Trajectory Correction and Impulse Force Influencing

The 6 Degree of Freedom simulation model was established for trajectory correction projectile with SIMULINK. Based on the model, the characteristic of the trajectory correction was studied with the impulse force. While impulse forces not acting on the centroid, the influence of accessional attack angle oscillation amplitude, impulse force scale and function time interval on range correction was discussed. It is discovered that the advantageous trigger impulse timing exists within a short range around the setting time. If the advantaged opportunity is chosen, the oscillation of accessional attack angle may be reduced greatly, So the effect would be close to the expecting revision result while acting on the centroid.