CFD and RBD coupling-based direct force and aerodynamic force composite control numerical simulation method

A numerical simulation and composite control technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of prolonging the design cycle, increasing design expenses, increasing the risk of flight test, etc., and achieving high computational efficiency and simulation reliability. high effect
CN112346359AActive Publication Date: 2021-02-09INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
Publication Date
2021-02-09

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Abstract

The invention discloses a direct force and aerodynamic force composite control numerical simulation method based on CFD and RBD coupling. According to the method, a flow control equation and a rigid body motion equation are solved through coupling, the conditions of an aerodynamic rudder deflection angle and a transverse jet flow outlet are changed in real time according to flight control law closed-loop feedback, and numerical simulation of the direct force and aerodynamic force composite control process is achieved. According to the numerical simulation method, the complex nonlinear couplingcharacteristics between nonlinear aerodynamic force and motion and between transverse jet flows can be fully considered, so the direct force and aerodynamic force composite control process is accurately simulated, and the numerical simulation method has the advantages of being high in simulation reliability and high in calculation efficiency.
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Description

technical field

[0001] The invention belongs to the field of missile maneuvering flight control and simulation, and in particular relates to a numerical simulation method of direct force aerodynamic compound control based on CFD and RBD coupling. Background technique

[0002] Due to the continuous improvement of the level of modern air combat tactics, in the face of fast and highly maneuverable control targets, whether they can quickly occupy positions, launch the enemy first, and effectively evade them will determine the outcome of the battle to a certain extent. It is foreseeable that the future combat environment will increasingly emphasize the mobility and quick response capabilities of tactical missiles.

[0003] Generally speaking, the maneuverability of tactical missiles depends on two aspects: one is the rapidity of response to control commands, and the other is the accuracy of the response results. Commonly used control methods for missiles include aerodynamic rudd...

Claims

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