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vol 67 / February, 2024
Article

DOI 10.17586/0021-3454-2020-63-7-634-639

UDC 629.7.015.3:531.7

ESTIMATION OF ERRORS IN INDIRECT MEASUREMENT OF AIRCRAFT AERODYNAMIC ANGLES USING ACCELEROMETERS AND PRESSURE SENSORS

A. K. Maksimov
Scientific-Research Institute of Aviation Equipment; Leading Designer ;


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Abstract. The influence of errors of pressure sensors and accelerometers on accuracy of indirect meas-urement of aircraft aerodynamic angles is studied. Total error of indirect calculation of glide angle is de-termined analytically using the М101Т aircraft as an example. Graphical dependences of angle of attack measuring error on errors of pressure sensors and accelerometers as well as inaccuracies in the indi-rect calculation of design parameters obtained by model study of the TU-104 aircraft in various flight modes are presented. As the design data, aerodynamic characteristics of the aircraft and calibration characteristics of the propulsion system are used.
Keywords: angle of attack, gliding angle, measurement, accelerometer, pressure sensor, modeling, errors.

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