Design Of Detecting Evaluator In Detection And Evaluation Ground System For A Certain Fighter Aircraft Maneuverability

The content of this paper is a part of The Research on Detection and Evaluation Ground System for A Certain Aircraft Maneuverability(2006T107), which is supported by Liaoning Province Education Department. While controlling a fighter with the control system as its crucial part, flight attitude is felt and operated through application of the joystick (or rudder pedal) force. The applied force of the control strut and connecting rod displacement are corresponding with each other, and the force and the displacement should be reasonably restricted.The detection and evaluation device on ground for fighter aircraft maneuverability should be a portable device, and it can display the application curve of the controller and the relative displacement of the connecting rod on LCD. The instrument consists of several parts, such as wireless data receiver, data processing and saving, curve displaying on LCD, keystroke controlling, power system, and so on. The original data which is gathered by data detection system is wireless received and stored, and than the curves is displaced on LCD. Through checking the curve, the technician will know whether the controlling system is in keep with the demand of design and whether it is in order or at risk. The generality of the instrument is broad in terms of its overall design, and it can not only detect the relationship between the joystick force and connecting rod displacement of the control system, but also can store the data got from the other relationship of variables and fit it into curves to display on LCD.This paper presents a new data-processing method which is applied in curve fitting and LCD displaying. The mean filter algorithm is combined with traditional interpolation algorithm in order to make noise be restrained. Besides, the paper particularizes the application functions specializing on displaying characters, pictures and curves. These functions are convenience and flexible and are applied to the compilation program of the detecting and evaluation device. The development and application of the device is helpful to improve the detecting accuracy of product's quality, safeguard the flight, lessen detecting time and labor intensity, and decrease number of detecting people. It is very convenient to the daily maintain and the performance-detecting of the flighter. Besides, it can also be applied to the other kinds of flighters'control system-detecting.