Accurate speed tracking controlling method for non-impulse gliding aircraft

A tracking control and aircraft technology, applied in the field of flight control, can solve problems such as poor speed regulation ability of unpowered aircraft, unpowered aircraft unable to achieve accurate speed tracking, unpowered aircraft unable to adapt to uncertainty, etc. The effect of improving regulation ability and improving survival rate

Inactive Publication Date: 2017-06-20
FLIGHT AUTOMATIC CONTROL RES INST
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Problems solved by technology

When the opening angle of the drag plate is the largest, the resistance it can provide is the maximum resistance at the current flying speed of the unpowered aircraft. If the resistance cannot meet the requirements of the current speed of the unpowered aircraft to track the set speed, then the unpowered aircraft cannot

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  • Accurate speed tracking controlling method for non-impulse gliding aircraft

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Embodiment

[0021] The present invention obtains corresponding example results through actual calculation of a certain unpowered aircraft model. figure 1 It is a comparison diagram of speed tracking motion curves according to an embodiment of the present invention. The abscissa is the time axis and the unit is s; the ordinate is the speed axis and the unit is m / s. (Curve 1 in the figure is the set speed movement curve of the aircraft, curve 2 is the speed tracking movement curve of the unpowered aircraft produced by speed control using only the drag plate, and curve 3 is the unpowered aircraft with ailerons to increase drag using the present invention Speed ​​tracking movement curve). The results show that compared with the traditional speed control method for unpowered aircraft, the speed control method for unpowered aircraft proposed in the present invention can track the set unpowered aircraft movement speed with higher accuracy in a larger rudder surface control range, thereby Improv...

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Abstract

The invention belongs to the flight control technology, and proposes a speed tracking control method for an unpowered aircraft, which can expand the speed tracking control range of the unpowered aircraft to improve the ability to adjust the speed, so that the unpowered aircraft can adapt to greater uncertainty. The technical solution adopted by the present invention is: during the flight deceleration process of the unpowered aircraft, when the required resistance is greater than the resistance provided by the maximum opening angle of the resistance plate, the left and right ailerons deflect in the same direction on the basis of the original deflection angle. This method can also be applied to manned fighter jets to improve the survival rate.

Description

Technical field [0001] The invention belongs to the flight control technology, and relates to the improvement of an unpowered aircraft speed tracking control method. Background technique [0002] At present, the speed control methods commonly used by unpowered aircrafts at home and abroad during the downhill process are to generate corresponding aerodynamic force by deflecting the drag plate to reduce the sliding speed, so as to ensure that the actual speed of the unpowered aircraft follows the desired set speed. The speed control steps are: [0003] Adjust the air brake to control the resistance during the flight of the unpowered aircraft: In order to prevent the unpowered aircraft from accelerating continuously during the descent process, the unpowered aircraft opens the resistance plate. The resistance provided by the drag plate is determined by the current speed of the unpowered aircraft and the opening angle of the drag plate. When the opening angle of the drag plate is at i...

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Application Information

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IPC IPC(8): B64C5/10
CPCB64C5/10
Inventor 胡永太彭永涛刘玮马钊王霄婷
Owner FLIGHT AUTOMATIC CONTROL RES INST
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