Dynamics modeling and static capability analyze of moving mass trim control of missile

A research of the techniques for controlling missiles with high supersonic speed and high maneuverability was carried out in this paper, and we put forward a scheme of moving mass trim controller (MMTC) of missiles. On basis of analyzing the advantages of the scheme, a dynamics model of MMTC was constructed, which includes centroid dynamics and dynamics moment equations of centroid. Finally, digitally simulated model of MMTC, obtained some responding curves of control system for the assigned moving mass. Although the simulation was simplified compared with actual situation, the static capability index obtained from the simulation had proved the feasibility of this control scheme.