基于变质心控制方式的再入弹头控制模式研究

Moving Centroid Control Mode for Reentry Warhead

弹头变质心机动控制是通过移动弹头的质心位置,利用气动配平力矩改变弹头的飞行姿态和攻角,从而可实现弹头机动控制。本文在推导变质心弹头的动力学方程的基础上,通过分析其方程组的特点并结合弹头再入过程中的气动、速度等参数变化规律,给出了变质心弹头再入过程中宜采用的控制模式,为变质心弹头控制律的设计提供了理论参考。

Moving centroid control for reentry warhead is used to realize the maneuvering control of the missile and to promote the enduidance accuracy by changing the mass center of warhead and aerodynamic trim moment, so as to adjust the flight attitude and angle-of-attack. In this paper, it gives appropriate control mode for stable moving centroid warhead, which is based on the deriving of dyamic equations of moving centroid controlled reentry warhead in detail, also the analysis of variational orderliness of velocity and aerodynamic parameter and the characteristics of the equations in course of reentry of warhead. This control mode will provide necessary theoretical basis for design ,of moving centroid control coefficient for reentry warhead.