Practical post-stall v tail tilt angle self-adaptive control method

Abstract

The invention provides a practical post-stall v-tail tilt angle self-adaptive control method, and belongs to the field of aircraft control. The method comprises the following steps: carrying out simulation verification on automatic take-off and landing crosswind resistance control of a V-tail tiltable unmanned aerial vehicle, and determining a minimum V-tail tilt angle required under different attack angles and sideslip angles; carrying out vector roller stall maneuver simulation verification of the V-tail tiltable unmanned aerial vehicle, and determining the minimum V-tail tilting angle required under different attack angles and sideslip angles; determining the minimum V-tail tilt angle corresponding to the corresponding attack angle and sideslip angle under different flight tasks; basedon the thought of the maximum threshold value and the dead zone, constructing the logic of a V tail inclination angle control strategy, and carrying out the V tail inclination angle simulation verification under different tasks. The control method is high in practicability and efficiency, the self-adaptive control problem of the V-tail inclination angle of the V-tail tiltable aircraft is solved based on the autonomous take-off and landing and post-stall maneuver control requirements of the V-tail tiltable aircraft, and the control method is high in efficiency, high in reliability and easy to apply practically in follow-up engineering.

Description

technical field [0001] The invention belongs to the field of aircraft control, and in particular relates to a practical post-stall V-tail tilt angle self-adaptive control method. Background technique [0002] The V-tail tiltable aircraft has strong stealth and maneuverability. When penetrating the defense, the V-tail is embedded in the aircraft body to enhance the stealth performance; when fighting at close range, the V-tail can be tilted to a certain angle to increase maneuverability. . When the V-tail tiltable aircraft autonomously lands, cruises, and performs large maneuvers with vector rollers, the V-tail tilt angle of the aircraft is different in different mission stages. When encountering crosswinds or performing large lateral maneuvers, the The tail must be tilted at a certain angle to enhance the stability of the aircraft's lateral heading, and the V-tail tilt angle must be as small as possible in the cruising phase to reduce the resistance during flight and increas...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the present invention provides a practical over-stall V-tail tilt angle adaptive control method to solve the problem of excessive V-tail tilt angle of the aircraft. stall adaptive deflection problem

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