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Research on Control Method of Moving-Mass and Lateral Thrust Combined Missile

Author: KongXue
Tutor: WangZiCai;WangSongYan
School: Harbin Institute of Technology
Course: Control Science and Engineering
Keywords: moving mass lateral thrust combined control dynamic inversion
CLC: TJ765
Type: Master's thesis
Year: 2008
Downloads: 94
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Abstract


Future missions for atmospheric missile will place increased emphasis on the need for maneuvering, techniques for controlling the flight characteristics of missile has gravitated to systems that deliver relatively high accuracy of control authority. The topic of control and guidance of a moving mass and lateral thrust combined missile in endo-atmospheric space is widely discussed in this paper.First, according to dynamics about multi-body, the mathematical model of the combined control missile is derived from first principles to investigate and fully account for the dynamic coupling between the two bodies.Then, the attitude control method for the moving mass and lateral thrust combined missile is proposed. An attitude control model which is the canonical model of dynamic inversion control is derived by predigesting the mathematical model. Based on the attitude control model, the dynamic inversion attitude control law is designed, according to the principle of combined control, the control command for lateral thrust and moving mass are gained respectively to achieve the attitude control. Simulation results show that the attitude control system can realize efficiently attitude adjustment for missile.Finally, a design of the missile guidance control law is arrived at using proportional navigation method. Anticipant overload is gained based on the guidance control law and anticipant attitude command is given by transferring from it, On the basis of all above the control and guidance of the combined missile is achieved. Simulation results presented demonstrate the control and guidance law effectiveness in endo-atmospheric missile with moving mass and lateral thrust. Dynamic, aerodynamic, and inertial cross-coupling do not appear to significantly degrade the control and guidance system’s response.The focus of this paper is to assess the feasibility to increase the accuracy of missile control and the most important aspect is the presentation of general design and analysis tools that can be used to realize it.

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CLC: > Industrial Technology > Arms industry > Rockets, missiles > Missile > Guidance and Control
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