Systems Engineering and Electronics ›› 2024, Vol. 46 ›› Issue (5): 1734-1744.doi: 10.12305/j.issn.1001-506X.2024.05.26

• Guidance, Navigation and Control • Previous Articles    

Multi-source force combined control method for novel agile projectiles

Xinyun ZHAO, Jianqiao YU   

  1. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
  • Received:2023-05-24 Online:2024-04-30 Published:2024-04-30
  • Contact: Jianqiao YU

Abstract:

A multi-source force control method for novel agile projectiles is proposed to improve the large angle maneuverability of the missiles. Firstly, the geometric configuration of the novel agile projectiles is designed by adding a type of flexible and controllable parachute to the tail of traditional reaction-jet and aerodynamic compound control agile missiles. Then, based on reasonable assumptions, the flexible and controllable parachute is simplified as a controllable flexible force acting on the tail of agile missiles. A quantitative description method for the magnitude, direction, and dynamic response characteristics of the controllable flexible force is provided. Furthermore, a dynamic model introducing controllable flexible force in the vertical plane is established. Finally, for the multiple input multiple output system with strong coupling/strong uncertainty/fast time variability, and strong nonlinearity, the flexible force, reaction-jet and aerodynamic compound control law is designed to achieve the agile turn of the novel projectiles. The rationality and effectiveness of the proposed method is verified through simulation, and compared with traditional agile missiles, it is verified that the proposed method is beneficial for improving the large angle maneuverability.

Key words: missile, agile turn, flexible and controllable parachute, controllable flexible force, sliding mode control, extended state observer (ESB)

CLC Number: 

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