Aerodynamic Errors Mathematical Modeling in Air Data Systems Estimation Technology in Flight Tests Using Satellite Navigation Systems
https://doi.org/10.17587/mau.22.272-280
Abstract
Problems of mathematical modeling of onboard air data systems errors are of paramount importance in pitot-static sources errors determination, air data systems evaluation in flight tests. The problems of development, identification and assessment of the mathematical models of errors adequacy acquire main importance in the modern technology of the air parameters true values determination, air data systems evaluation using satellite navigation systems, developed and applied in the practice of flight tests at JSC "FRI n.a. M. M. Gromov". This paper gives a general description of an air data systems estimation technology using satellite navigation systems. The principles of solving problems of aircraft data systems aerodynamic errors mathematical modeling are stated. The structure of mathematical models, factors of the aerodynamic errors, relationship of the solving problems of errors modeling within the framework of technology with a flight experiment plan are shown. Mathematical models parameters identification are based on a complex solving of the problems of a true air data parameters values and aerodynamic errors determination in flight tests. New results of mathematical modeling of errors in tests at high angles of attack in 2018 year of medium-range and short-range aircraft are presented. The results illustrate the technology effectiveness in solving the problems of flight tests at high angles of attack information support, aerodynamic errors modeling, air data systems estimation. The applied modeling methods make it possible to allocate in the mathematical models of pitot-static sources aerodynamic errors even the factors of very weak aerodynamic influence, comparable with the minimum pressure sensors instrumental errors.
About the Authors
S. G. Pushkov
Flight Research Institute
Russian Federation
Russian Federation
D. Sc., Flight Research Institute
Zhukovsky, 140180, Moscow Region
L. L. Lovitsky
Flight Research Institute
Russian Federation
Russian Federation
Zhukovsky, 140180, Moscow Region
O. Y. Gorshkova
Flight Research Institute
Russian Federation
Russian Federation
Zhukovsky, 140180, Moscow Region
I. V. Malakhova
Flight Research Institute
Russian Federation
Russian Federation
Zhukovsky, 140180, Moscow Region
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Review
For citations:
Pushkov S.G., Lovitsky L.L., Gorshkova O.Y., Malakhova I.V. Aerodynamic Errors Mathematical Modeling in Air Data Systems Estimation Technology in Flight Tests Using Satellite Navigation Systems. Mekhatronika, Avtomatizatsiya, Upravlenie. 2021;22(5):272-280. (In Russ.) https://doi.org/10.17587/mau.22.272-280
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