Study And Simulation Of Control And Guidance System Of Spinning Maneuver Warhead With Variable-Centroid

It is important for ballistic missiles to achieve ending maneuver ability as the development of interception and anti-interception technique, which can enhance the ability of missile抯 anti-interception and improve the ending attack precision greatly. The survey of maneuver warhead technique was proceeded in America and Russia in the 1970抯 and 1980抯, and this technique has been employed in practice. The control of pneumatic servo is mainly adopted to the maneuver warhead control program in our country now. Because of the worse resisting ablation ability and the lower control efficiency of pneumatic servo, the method is hard to be applied to the high-speed warhead or high-maneuver warhead. The variable-centroid control program for warhead is presented in the paper, which is studied through the theory analysis and practical application. This paper includes the following innovation points: 1. The variable-centroid control program for warhead is presented, The dynamics equation of Spinning Maneuver Warhead with Variable-Centroid(SMWVC) is established by the Lagrange equation. 2. The Dead Zone Model Reference Adaptive Control is presented, which improves the robustness of control system. This paper, includes the following contents: 1. The variable-centroid control program for warhead is presented, which overcomes the defects of pneumatic servo control program ultimately. 2. The dynamics equation of Spinning Maneuver Warhead with Variable- Centroid(SMWVC) is established by (he Lagrange equation, and the control mechanism of SMWVC is derived from the analysis of dynamics equation. 3. The PID control ioop is designed for single-channel control system of spinning warhead. By introducing transformation matrix to switch observation signals, it comes to be possible to apply the PID control loop to the spinning warhead. 4. The Dead Zone Model Reference Adaptive Control is presented, which can effectively reduce the influence of unmodeled dynamics and noise. 5. The optimum attack angle a is achieved by the optimum design method, which can ensure the trajectory slope angle to meet the preset requirement and make the warhead have the greatest velocity in the ending trajectory. 6. Based on the optimum quadratic performance index, the optimum guidance law is deduced to make sure the landing velocity and angle of warhead. 7. The variable-centroid servo is designed and the necessary power and the maximum power are evaluated at the same time. Ill LI 8. The tumbling chain sympathetic vibration of spinning warhead is discussed and analyzed, which can be avoided by controlling the rolling channel. Simultaneously, two kinds of applicable control programs for the rolling channel梩he high-pressure tank control program and tilt wing control program are proposed. 9. The numerical simulation is processed for the whole system. The maneuver ability and attack precision of SMWVC is provided. The new theories, new methods, and the application environments discussed in the paper provide a foundation for future reference.